How to Choose Base Layers

Great for powder days and ski tours, these Arc'teryx base layer pants have a close fit to slide easily under your outer layers. Coreloft™ insulation provides warmth without bulk.
Imported.
View all Arc'teryx Women's Base Layer Bottoms| Best Use | Multisport Snowsports |
|---|---|
| Fabric | Torrent 190 with Polygiene 50-denier recycled nylon stretch woven plain weave with FC0 durable water repellent (DWR), 97 g/m2; recycled 20-denier nylon plain weave weft stretch with FC0 DWR, 58 g/m2 |
| Underwear Weight | Heavyweight |
| Inseam (in.) | Unavailable |
| Gender | Women's |
| Sustainability | Contains recycled materials Fair Trade Certified™ Factory Contains bluepass certified material |
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I bought these in store so I was able to try them on and was beyond extra tic to find a size that actually fit me. I am 5ft 6in with a hip circumference of 49.5in and I bought the XL which fit with just a smidge of elbow room for bending and sitting. I can’t believe it took me this long to discover these for a base layer under my snowboarding semi insulated bib. My thighs are always the first thing to get cold and the last thing to warm up especially when riding open chairs in blisters storming conditions but with this added to my cold weather arsenal I have been able to keep myself warmer, Finally!!
[Employee of arcteryx] These pants are so comfy and warm! Perfect for really cold ski days under my shell bib and for lounging about in the mountains. Not too long either which is perfect!
I bought this layer to wear underneath my shell pants for downhill skiing and cross country skiing and it is awesome! The insulation and design really does add warmth without bulk. The waist is high and very comfortable because it is wide and stretchy. The length is not a problem for ski boots because the lower leg material is smooth and thin. In terms of warmth (which is a subjective personal experience), for me the hybrid design falls right in between a regular base layer and my absolute go to for long really cold days (as in colder than -10) the Axina Knickers (discontinued product that is a full insulation boot cut base layer). I ordered size Small and have full range of movement, I am 5'5" almost 120 lbs, small boned, with a bit of a booty ;)
The pants will keep you warm, and they are soft and cozy. However, the fit is weird. I am 5’8 and lean, athletic build. The pants are a tad short, fitting me mid calves; also tight on the calves. I got a size small and the fit was perfect at waist, but so tight at calves that I could barely pull them. The size M fit better on my calves (though still short), but it is looser in the hips and waist. They are overall ok, but for the price I would have expected better fit and at least a drawstring cord in the waist.
(This review was collected as part of a promotion.) I tend to be on the cold side and i am always looking for tights with some insulation. I thought these would be a good investment for heliskiing in colder temps. However, the fit was quite tight in the hips/butt area and thusly i had to return them as i could not flex my hips fully and they would not work well for their intended purpose. The leg length was fine. These would likely work much better for someone who has a less athletic/ flatter bum than i do! I have a small waist ( 26-27" ) and it fit fine there.
[This review was collected as part of a promotion.] Finally pulled the trigger with these as I have eyeing them for a while and I am am so happy I did! These are surprisingly warm and pair well with the Sentinel pant. I used to have to wear 2 pairs of leggings every day while skiing and finally can get away with use these. Bought these specifically for skiing but finding other uses like winter fly fishing under my waders. Only feedback for the next generation of these: include a draw string at the waist to cinch down as they stretch out slight with wear.
I bought these pants about a month ago. The idea was to have something to underneath my ski pants for resort days and under my waders for cooler days on the river. I am very pleased with the fit and the additional warmth they provide. They fit like an insulated tight and are pretty low profile, not bulky. I haven't used them for skiing yet and not sure how they'll fit under a ski boot but I'm not too worried. I'm 5'6" and have a bum/hips/thighs and a narrower waisted, a medium fit great.
[Employee of arcteryx] I had no idea I would love these pants as much as I do! A few things I love: 1. Insanely comfortable and cosy! The insulated parts hit all in the right places, They're stretchy, allow me to be super mobile and I can happily wear them all day. The material is soft and comfy and they fit great! 2. They look so great on! I have had many compliments already - can happily wear them just as you would wear a pair of leggings. Also awesome underneath a shell outer layer pant. 3. If you have the Atom jacket, they're sort of like the Atom for your legs! There's areas with insulations (In all the right places) and areas without- again in the right places, so provide breathability in the right places. After a few wears, I instantly ordered another pair for my friend as I know she's going to love them.
A mix of leggings and insulated pants. The bottom is stretchy like leggings that will make it easy to put in ski boots. I wear a medium in other bottoms, but for these pants I am sizing up to a large. The side panel is stretchy but the insulated section is not. So I sized up to a large as the medium fits but I have a limited range of motion so for skinning up or skate skiing I need more range of motion.
These pants are amazing. Purchased for winter running as an outer layer and underneath my snow pants for skiing as a base layer. Great for up to -20C days. They are like a light atom material on the upper legs with legging like material on the calf. They do have a short inseam around 25’ which happens to be great for petites. Purchased true to size as they do stretch slightly with wear.