Arc’teryx Sabre LT Bib Pants Review

Every winter in the Pacific Northwest is different. Forecasters in November give us their take on what the snow year will be like, if it will be an El Niño or La Niña year, etc. It was supposed to be a big winter here in the Pacific Northwest, but right now we’re sitting close to average snowpack in the Idaho Panhandle and perhaps a bit above average in the North Cascades. What I’m going for here is this: with PNW winters, you’ve got to be prepared for anything. So we look for versatile gear to use, like the Arc’teryx Sabre LT Bib Pants.

Arc’teryx Sabre LT Bib Pants Features:

• Keprotec™ insteps guard against edge abrasion
• 100D Cordura® Quick adjust TouringCuff™ allows for easy buckle management
• Supple, windproof and waterproof N80p 3L GORE-TEX with C-KNIT™ backer technology is quiet and soft with excellent breathability
• Wee Burly™ Double Weave four-way stretch softshell fabric creates a comfortable low bib
• One zip pocket on the left thigh
• Flapped secured zip pocket on the right thigh
• One zippered pocket on bib
• Micro-seam allowance (1.6 mm) reduces bulk and weight
• Adjustable suspenders
• Weight: 620g
• MSRP: $525

Lightweight bibs with full coverage

I always like to start off reviews for high-tech waterproof/breathable garments with a discussion about the base fabric. Arc’teryx chose to use GORE-TEX with GORE C-KNIT backer as the foundation for the Sabre LT bibs. This is an 80D, three-layer waterproof/breathable fabric that’s designed to be a bit more quiet and supple than traditional GORE-TEX fabrics. ’80D’ basically refers to the density of the fabric’s weave, and 80D is really quite a robust fabric. It should resist tears and punctures fairly well, and the only real step up from this is the 100D fabric that’s often seen in gear marketed towards professionals.

At the same time, the C-KNIT backer does help the fabric feel a bit less ‘plastic-y.’ This manifests with a softer overall feel, and it is quieter than other fabrics. You’ll notice a bit less rustling, especially on those long days on the skin track. The fabric also has a small degree of give to it, and while it’s not ‘stretchy’ it’s not as restricting as more traditional waterproof/breathable fabrics.

The top of the bib is rounded out with what Arc’teryx has labeled their ‘Wee Burly Double Weave’ soft-shell fabric, which is basically just a soft, stretchy extension of the bib up onto your abdomen. It’s not waterproof (just resistant), which makes it a bit more breathable and comfortable for an area that usually doesn’t get wet. The bottoms feature a very durable instep pad made of Keprotec, which was originally designed as a protective fabric in motorcycle racing. It is crazy strong. Just below that is a 100D Cordura adjustable touring cuff to keep the snow out.

Moving on from the basics, let’s talk about how these perform in the field. Personally, I like the fit but would say they run a touch small. I find them comfortable, but with a product this expensive I recommend trying them on first. I did find them a bit tight around the thighs at points and agreed with a consumer on the Arc’teryx product reviews page that had trouble with them riding up during skinning. I agree, they do tend to ride up, at least on my frame. Personally though, I almost never go uphill with the vents zipped up, and unzipping the ventilation provided all of the give and space that I needed. This is helped somewhat by the fabric’s built-in give, too. For reference I am 5’11”, 200lb, and am wearing a Large.

The bibs are marketed as being a ‘lightweight’ option (thus the LT), and this comes with a few design features that consumers should take note of. The most obvious one is the asymmetrical leg zips, and only the right side has a 3/4-length zip (the left just has a foot-long vent zipper). This means a couple things: 1) you can’t pull these on/off over your boots; 2) you have to get a bit creative when nature calls; 3) you save weight over options with two full-length zipper.

Basically, if you have to make a triple-chocolate-fudge-brownie sunday in the snow, you can zip off the right side of the bibs, ditch the suspenders, and squat to do your business. It’s not perfect, but it works. It’s definitely a bit easier with bibs that have true twin zippers to create a peel-away pant seat, but it works. Overall, I would rather take a backcountry poop in a design like the Patagonia Snowdrifter.

• Excellent fabric, with a good mix of durability and comfort
• Incredibly burly reinforcement on the instep for protect against ski edges or crampons
• Thoughtful implementation of pockets, detachable bib straps, etc
• Overall, these are comfortable for long days of touring

The Bad:

• The weight-saving single main zipper is not as easy to use when nature calls
• Tended to ride up while skinning unless I had the vents open (which I always do)

The Bottom Line: Arc’teryx Sabre LT Bib Pants

I think that Arc’teryx’s phenomenal advertising gets the better of them some times. They are such a desirable brand that, at times, customers might not make informed purchasing decisions since they expect Arc’teryx products to be a be-all, end-all solution. That’s probably why these bibs have 2/5 stars on their product page: people need to realize that they’re buying a lightweight bib that’s optimized for alpine touring. Users who want to use these as a daily driver in the resort should buy a heavier, more feature-rich option. I will happily hold up my bibs, which have survived half a season of tough Idaho Panhandle early- and middle-season touring conditions, as proof that these are durable when used properly and with the right expectations.

Buy Now: Available from Backcountry.com