
Digital airbag packs are costly, however they’re a lot simpler to journey with than compressed air techniques, plus they permit for take a look at firing and a number of deployments off a single cost. BCA’s Float E2 35 (MSRP: $1299.95) makes use of Alpride’s E2 airbag system and whereas not new to the BCA line this season, it’s probably the greatest digital airbags available on the market. It sits between the extra compact and agile Float E2 25, which we’ve beforehand reviewed right here, and the Float E2 45, which is able to converse extra to guides, hut journey heavyweights, and in a single day aficionados.
On this two-season overview of BCA’s Float E2 35 (testing started in early spring, 2023), we’ll contact on each the backpack itself and the Alpride E2 airbag system. Between the comparatively light-weight, low-volume, and travel-friendly airbag componentry and the well-designed, rugged pack, the Float 35 is right for splitboarders and backcountry skiers who’re powerful on their gear and passport alike and wish extra quantity for longer excursions and greater goals.
BCA E2 system’s guts.
Fast Bio: Who The Hell Are You?
Earlier than I dive into the overview, let me begin by saying that is my first article for Wild Snow (longtime listener, first-time caller). Since a reviewer’s private preferences dictate how related their perspective is to you, right here’s a short bio (be happy to skip this when you may care much less). In the event you’re nonetheless right here, I’m a lifelong snowboarder who began splitboarding in Colorado within the winter of 2010/2011, and shortly thereafter stumbled right into a profession in out of doors journalism. After bouncing across the Rockies and Wasatch for the final fifteen years, I now reside in Tahoe, the place I break up my time between touring and chairlift-accessed shredding. I’m additionally an excessive gear nerd, direct splitboard testing for each Outdoors Journal and Backcountry Journal, and journey extensively (perhaps excessively?) in pursuit of powder.
The writer carrying the BCA Float 35 in Italy – Credit score: Katie Botwin
All that to say, like many frequent flyers, I’ve at all times gravitated towards electrical airbags. Over the past decade, I’ve had the privilege of testing a handful of airbags, and watching as 12 months after 12 months the expertise has gotten higher, lighter, and fewer cumbersome. The present state of digital airbag affairs–as evidenced by the BCA Float E2 35 I applaud beneath–is considerably extra enticing than they have been 5 years in the past. Issues nonetheless aren’t good, thoughts you, however we’re getting a hell of loads nearer.
A Transient Notice on The Panorama of Digital Airbags:
Digital airbags have been round since 2014, when Black Diamond launched the JetForce system a decade again—these packs have been revolutionary however heavy, amidst different points. Be at liberty to peruse Wild Snow archives for extra of a historical past lesson. As I discussed above, there’s been important evolution during the last ten years, and there are two predominant digital airbag techniques we suggest at this time: the Alpride E2 system (a latest improve to Alpride’s E1 system, which we first examined in 2018) and the LiTRIC system, each of that are powered by electromechanical supercapacitors (extra on these beneath). You’ll discover the E2 on baggage from BCA in addition to Deuter, Scott, and Osprey. The LiTRIC system, alternatively, you’ll discover on Ortovox and Arc’Teryx baggage. The techniques are pretty comparable, with the LiTRIC system being a contact lighter (100g), however we dive into the professionals and cons of each beneath.
Alpride E2 System: Low-Quantity And Journey-Pleasant
Wild Snow’s already lined the Alpride E2 supercapacitor system fairly totally on this article, the second piece of a two-part overview on BCA’s Float E2 25 (half one right here) when it first got here out in 2022. For probably the most half, I received’t regurgitate this largely technical data–-which is effectively price studying when you wish to nerd out—however as a substitute focus extra on my hands-on expertise with the system within the area and comparisons to each a competitor and predecessor.
Evaluating the E2 System to the E1 Predecessor
We first examined Alpride’s E1 system on the game-changing Scott Backcountry Patrol AP30 again in 2018 when the digital system first launched. We obtained our arms on the two.0 replace with BCA Float E2 25 in 2022, when the replace hit the market. As is typical for a product to earn a “2.0” badge, the E2 is considerably up to date, improved, and slimmed down. Alpride claims the E2 system is 140g lighter than the E1 system and 40% smaller, regardless of including 12 liters to the expanded airbag quantity. Whereas I didn’t take away and weigh E1 and E2 techniques (Wild Snow beforehand reported a measured distinction of 130g), I positively seen the distinction in quantity.
The BCA E1 system in Osprey’s older Soelden pack and the E2 within the BCA Float 35
Right here, I included a photograph of an older Osprey Soelden Professional 32, which makes use of an Alpride E1 System (the present Soelden providing from Osprey has been upgraded to the E2 system). You’ll be able to see an apparent distinction in dimension. After raiding the fridge for dairy merchandise for comparability, the E2 is nearer to the 16-ounce tub of cottage cheese, whereas the E1 is nearer to the 32-ounce yogurt. Scientific evaluation, I do know. However the massive distinction I seen is that after I pack up the E1 system, I’ve to actually take into consideration the place to fit cumbersome gear like Nalgenes, crampons, et cetera, because the compressor dominates the majority of the principle space for storing. With the E2 system (granted, the BCA has an additional three liters of quantity), the compressor is far more compact, much less obtrusive, and extra of an afterthought whereas packing.
Chobani for scale.
One other improve of the E2 system over the E1 is a small LCD display screen on the compressor that gives charging information. That is an addition, not a substitute, to straightforward LED indicator flashing lights that are additionally seen from the surface of the pack by a mesh patch. Personally, I appreciated the addition of the display screen as a result of my mind understands bars signifying battery life significantly better than Morse Code flashing, colourful lights. The exterior lights additionally solely inform you what the general cost stage is, whereas the LCD display screen offers you extra information, telling you the cost stage of each the supercapacitors themselves (the electromechanical parts that fireplace off the airbag upon deployment) in addition to the 2 AA batteries that high off the supercapacitors for as much as three months when you’ve charged by way of USB. Talking of, the E2 prices off quicker USB-C as a substitute of the E1’s micro-USB.
Yet another replace: extra simple deflation. The airbag auto-deflates after three minutes, however when you’re simply practising or need to reduce deflation time down, there’s a deflation knob that’s accessible by a zipper built-in into the mesh panel on the surface of the pack. Translation: you don’t have to empty or unzip your predominant compartment to deflate.
All instructed, you don’t want a PhD in supercapacitors (which I positively wouldn’t have on my gear room wall) to glean that the Alpride E2 is a serious improve from the E1. Nevertheless, how does the system stack up towards the competitors? Particularly, the award-winning LiTRIC system discovered on Ortovox and Arc’Teryx airbags.
An in depth up view, with airbag stuffed, of the LiTRIC system. Right here we see the uncovered energy button and the USB C port. The ultimate manufacturing fashions may have a detachable rubber cowl for this energy swap/USB C port.
Evaluating the Alpride E2 to its Largest Competitor: Ortovox and Arc’Teryx’s LiTRIC System
I’m not going to dive tremendous deep right here, as I’d like to avoid wasting lung capability to wax on the backpack itself, which, for my part, is a serious draw for anybody contemplating this airbag. Moreover, as I discussed, I’m no supercapacitor brainiac. Nevertheless, it’s price shortly evaluating the Alpride E2 system to its largest competitor: the LiTRIC.
The LiTRIC system can also be primarily based on supercapacitors, and it’s a contact lighter than the E2 (1100g in comparison with the E2’s 1190g, which does embrace the double AA batteries). I’ve been testing the Ortovox Tour 40 since this previous spring, and I preferred the push-button fashion on-off swap of the LiTRIC system extra, because the E2’s pull-and-twist mechanism is just a little annoying, however this can be a minor gripe. Each techniques appear to take up an identical quantity of pack quantity, though the LiTRIC airbag is extra condensed and sits increased than the E2 system within the pack, which I additionally dug. The positioning appears to depart just a little extra utterly unencumbered actual property for packing gear, whereas the airbag pocket on the BCA pack has noticeably much less depth however takes up extra floor space of the again paneling. One other minor distinction.
Then again, the BCA pack’s E2 set off may be zipped into the shoulder strap–a design ingredient you received’t discover within the lighter, less-featured Ortovox Tour 40. As an airtime-addicted albeit not significantly gifted snowboarder who likes to leap off cliffs and infrequently eats great quantities of shit, I actually recognize having the ability to zip away the deal with. You can too swap the set off by the opposite shoulder strap on the BCA, or use one facet for a hydration system or a BCA Hyperlink Radio. Nevertheless, the LiTRIC does permit you to twist and lock the deal with so that you don’t by accident deploy the airbag, and that function is well-designed, straightforward to make use of, and far appreciated.
The largest distinction between these two techniques is arguably the best way that the supercapacitors are recharged. The LiTRIC makes use of a built-in lithium-ion battery, whereas the Alpride E2 makes use of two AA batteries. For more information on this, Wild Snow contributor Jason Albert dissected the ins and outs of the lithium-ion battery and the LiTRIC system right here.
To me, one of many predominant advantages of going with the E2 system is that you could high up the supercapacitors after deployment with recent AA batteries. In the event you’re on a protracted expedition and received’t have entry to an outlet for weeks on finish, you possibly can carry alongside additional batteries and be assured in recharging after a deployment. Right here’s a notice from BCA on utilizing alkaline versus lithium-ion AA batteries, and what meaning for deployments within the area:
AA BATTERIES FOR ADDITIONAL DEPLOYMENTS
Along with the supercapacitor storage, you possibly can set up two AA batteries to permit for added deployments within the area. The batteries additionally assist preserve the supercapacitors at full cost when not in use.
AA alkaline batteries enable for one further deployment and is able to protecting the system charged for as much as three months of regular use. AA lithium batteries enable for 3 further deployments and is able to protecting the system charged for as much as 5 months of regular use.
Vice versa, a advantage of the LiTRIC system is that you simply don’t want to carry alongside batteries, because the lithium-ion battery recharges the supercapacitors after deployment. I examined the Ortovox bag on a three-week journey that concerned a 10-day expedition in Norway’s Arctic Circle. Whereas I by no means needed to deploy the pack on that journey, I had zero issues leaving it on the complete time within the form of gnarly, sub-zero temperatures which can be alleged to be troublesome for lithium-ion batteries (as evidenced by a contact of frostnip on two toes).
There are professionals and cons to each of those techniques, in addition to refined variations in weight, however they’re each strong. In comparison with the digital airbags of yesteryear, we’re definitely in a renaissance of avalanche security (which hopefully continues on and on), and I reckon anybody who’s upgrading to both the LiTRIC or E2 system from a earlier technology (or a compressed air airbag) goes to be stoked. My recommendation? Quite than focusing solely on the system itself, I like to recommend utilizing pack quantity, weight, options, and backpack particulars to select your subsequent pack. I’ll focus extra on the Ortovox Tour 40 in one other article, however for now, let’s dive into why I dig this BCA possibility.
My recommendation? Quite than focusing solely on the system itself, I like to recommend utilizing pack quantity, weight, options, and backpack particulars to select your subsequent pack.
Extra Causes I Love The BCA Float E2 35
Sturdiness
From day one, I had a speculation this pack can be extraordinarily sturdy, and that speculation proved right. The material is hard–a PU-coated Nylon 420D armor that handles every little thing from moist slush and snagging branches to spilled electrolyte drinks and overhead bin wrestling matches. I’ve put most likely 30 days in on this pack on the sector, together with a weeklong hut journey in Sweden, a two-week street journey within the Alps, and a visit to Hokkaido. After important journey, the one put on and tear I seen is a few beauty fading of lettering and a miniscule tear alongside a bit of piping on the “Aspect Stash” zipper (extra on that beneath).
Journey-Pleasant Construct
I’ve flown with this BCA pack to a number of international locations and throughout the western United States. As I discussed above, the sturdiness is such that you simply don’t have to child it in transit. Extra importantly, TSA (most likely) received’t provide you with a tough time because it’s an digital airbag. I had one concern throughout umpteen legs of journey in Washington DC. TSA did search the pack, but it surely was moderately fast, I prevented a strip search, and so they quickly despatched me on my approach.

Effectively-Designed Pockets and Options
Certainly one of my largest pet peeves with avy packs is when producers ditch sure pockets to maintain weight down. I perceive the why–I simply personally like to have a microfiber-lined goggle stash pocket, a hip belt pocket for snacks and chapstick and scraper… you get the image.
The Float E2 35 doesn’t skimp. The primary compartment is tremendous spacious–-I discovered it strong for stashing bigger objects like emergency puffies, a mirrorless digital camera, sleeping bag liner, et cetera. The exterior zipper is curved, a function I used to be initially involved about durability-wise however proved rad within the area. The zipper shortly filets the principle compartment open like a tuna within the Tokyo fish market, offering entry to each nook and cranny.
There’s additionally an non-obligatory zippered divider simply beneath the compressor, which helps separate dry duds from moist skins and water bottles, or sharp crampons, so on and so forth. This zone is accessed shortly by way of the Aspect Stash zip, which may be externally operated whereas the pack is on–a plus on time-sensitive missions. One other inner organizer pocket is situated on the airbag storage pocket, which incorporates an built-in key clip.
Past the principle compartment, there’s an simply accessed avy pocket demarcated by an orange zip, with separate sleeves for shovel and probe. I examined it with just a few shovels, the beefiest being the BCA Dozer 2T. The blade suits, however it’s a contact cosy when totally loaded. There’s additionally a small zippered pocket contained in the avy pocket, which I used for gear I’d hardly ever use, like my binding restore equipment.
As I discussed already, I really like a microfiber-lined goggle pocket, and BCA’s is definitely accessed. The hip belt pocket (singular, sigh) was spacious sufficient for my slimmer iPhone, just a few mini Snickers bars and gummies, chapstick, and my trusty scraper.

General Capability & Exterior Carry Techniques
Quantity, after all, is a private sport. In the event you’re fortunate sufficient to have a number of avalanche packs in numerous volumes, good for you. However for many backcountry customers, I say 35 liters is a candy spot for a Swiss Military Knife, do-everything pack. It’s greater than I want on most excursions–32 is loads for me, often–however BCA outfitted the pack with A-frame ski carry straps that double as compression straps, and you may compress the pack down a contact if it’s not totally loaded. (Exterior carry attachments additionally embrace a stashable helmet hammock, vertical board carry, diagonal ski carry, and ice axe attachments–all helpful and appreciated necessities.) Nevertheless, the 35-liter pack has sufficient hauling potential for greater days once you’re packing sharps, colder days once you want severe layers, and even fast-and-light overnights or hut journeys.
The one time I actually maxed out the pack was on a weeklong hut journey in Sweden (we pulled in group meals by way of a sled, and didn’t want sleeping baggage). I used to be in a position to match a spare set of socks, base layers, sleeping bag liner, two Nalgenes, toiletries, and down hut booties, in addition to crampons, an ice axe, harness, and a Petzl RAD system. It was maxed out, but the padded shoulder straps and agency foam again panel ensured the weighty pack remained manageable.
The BCA Float 35 travels overseas. Credit score @matsdrouggephotography, taken in Sweden
Strong Trip High quality
I used to be very impressed by the downhill trip high quality. I had no drawback hucking myself off cliffs and pillows or driving on the fringe of my means in freeride terrain. The padded straps, hip belt harness and the stiffness of the again panel, plus the compression straps for cinchability, permit you to ship it when it’s go time. Strong–no notes right here.
A Few Minor Critiques
The draw back of the Float E2 35’s sturdiness, as you possibly can most likely guess, is weight. Whereas the Alpride E2 system is pretty aggressive, the pack itself shouldn’t be the lightest possibility available on the market. BCA claims the load is 6.1 kilos, whereas my low cost baggage scale appeared to have the medium/giant pack be nearer to five.5 kilos, however positively sub-6. The Ortovox Tour 40, as compared, has a claimed weight of 5.42 kilos, and my scale has it hovering proper round 5 kilos, if not a hair below (though it’s lacking some options like a hip pocket–extra on that in a soon-to-come overview).
In the event you’re grumbling in regards to the lack of exact information, pricey gram counter, my apologies. I’m not a quick and lightweight man–I’m a splitboarder who’s extra involved with downhill efficiency than uphill velocity–and I don’t personal a drug seller scale. My regular concern is overpacking for worldwide journey, therefore the bags scale. Perhaps if Wild Snow retains re-upping on critiques, I’ll lastly fulfill, as Rick Ross as soon as waxed, my triple-beam desires.
Drug trafficking jokes apart, I’d additionally like to have two hip belt pockets, however the proper hip has a loop as a substitute. Alas. Additionally, whereas there are two ice axe loops, the pack solely comes with one velcro strap. You will get round this–I usually rode with each an ice axe and a whippet–but it surely’s price noting.
Whereas I didn’t discover any points with the chest strap as Albert did in his Float E2 25 overview, I had the left facet of the hip belt loosen a few instances whereas touring. This wasn’t frequent, but it surely was minorly inconvenient and required re-cinching.
Lastly, I’m fairly skinny (5’9”, 155 kilos, 30-inch waist firstly of touring season, 29-inch waist in spring) and wanted the hip belt cinched nearly all the best way down on the uphill for consolation and on the descent for rideability. In the event you’re a few inches skinnier than me, you could be slicing it shut on a medium/giant pack.
Credit score @matsdrouggephotography, taken in Sweden
The Verdict: The BCA Float E2 35 Is Prepared To Ship For Seasons To Come
A litany of professionals overwhelm just a few minor cons (which we see in just about each airbag) right here. All instructed, the BCA Float E2 35 is a completely featured and extremely sturdy avalanche airbag that makes use of one of many two main digital airbag techniques available on the market. In the event you’re counting grams, it’s not the lightest digital airbag pack on the uphill, but it surely’s constructed to final, neatly designed, user-friendly, and ultra-organizable. The 35-liter capability, mixed with compression straps, makes it a candy choose when you’re searching for one airbag that works each on common excursions and greater days alike. The battery rechargeable supercapacitor is a superb choose for expedition use. Most significantly to this powder-hungry reviewer, it affords skiers and riders glorious downhill really feel, match, efficiency, and safety.

I’m Drew Zieff. A mountain-loving, powder-chasing, ink-slinging freelance journalist and copywriter. I’ve penned tales for publications similar to Outdoors Journal, Backcountry Journal, and Common Mechanics, amongst others. Longtime WildSnow reader and now a contributor.


















