How to Choose Base Layers
Arc'teryx Rho Base Layer Bottoms - Women's
$100.00
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On cold days with lower output, layer up in the women's Arc'teryx Rho lightweight base layer bottoms. Made for wicking and warmth, they dry quickly, let skin breathe and deliver soft-brushed comfort.
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- Torrentâ„¢ performance-stretch brushed fleece speeds up moisture transfer, provides light warmth and feels soft next to your skin
- Polygiene® treatment helps with long-lasting odor control
- Full-length, next-to-skin fit aids thermal efficiency and moisture transfer
- Articulated patterning and gusseted crotch work with the stretch fabric to allow greater freedom of movement
- Flatlock construction improves next-to-skin comfort; merrow stitch seam construction reduces seam size
- High-rise, nylon knit-lined waistband is comfortable and layers smoothly
- Tight pocket with laminated zipper is sized for smartphones
- Contains materials that meet the bluesign® criteria
Imported.
View all Arc'teryx Women's Base Layer Bottoms| Best Use | Multisport |
|---|---|
| Fabric | Main: Torrent 190 g 84% polyester/16% elastane; other: Chira 220 g stretch-nylon interlock 71% nylon/29% elastane (bluesign® approved) |
| Moisture Wicking | Yes |
| Quick Drying | Yes |
| Fly Opening | No |
| Underwear Weight | Lightweight |
| Inseam (in.) | 30.5, 31, 31.5, 32, Unavailable inches |
| Gender | Women's |
| Sustainability | Contains materials that meet the bluesign® criteria |
Arc'teryx Clothing - Women's
| XXS | XS | S | M | L | XL | XXL | XS Short | S Short | M Short | L Short | XS Tall | S Tall | M Tall | L Tall | XL Tall | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 Short | 0 Short | 2 Short | 4 Short | 6 Short | 8 Short | 10 Short | 12 Short | 14 Short | 2 Tall | 4 Tall | 6 Tall | 8 Tall | 10 Tall | 12 Tall | 14 Tall | 16 Tall | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Numerical Size | 00 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0-2 | 4-6 | 8-10 | 0-2 | 4-6 | 8-10 | 12-14 | 16-18 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 00 | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | |
| Chest | 30 | 32 | 34 | 36 | 39 | 43 | 47 | ||||||||||||||||||||||||||||||||||||
| Sleeve Length | 28.5 | 29.5 | 30.5 | 31.5 | 32 | 32.5 | 33.5 | ||||||||||||||||||||||||||||||||||||
| Waist | 23.5 | 25.5 | 27.5 | 29.5 | 32.5 | 36.5 | 40.5 | 27 | 28.5 | 30.5 | 34 | 27 | 28.5 | 30.5 | 34 | 38 | 24 | 25 | 26.5 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 | 24 | 25 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 26.6 | 27.5 | 28.5 | 30 | 31 | 33 | 35 | 37 |
| Hip | 33 | 35 | 37 | 39 | 42 | 46 | 50 | 36 | 38 | 40 | 43.5 | 36 | 38 | 40 | 43.5 | 47 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 | 33.5 | 34.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 36 | 37 | 38 | 39.5 | 40.5 | 42.5 | 44.5 | 46.5 |
| Inseam | 30.5 | 31 | 31 | 31 | 31.5 | 32 | 32 | 28.5 | 29 | 29 | 29.5 | 33.5 | 34 | 34 | 34.5 | 35 | 30.5 | 30.5 | 30.5 | 31 | 31 | 31 | 31.5 | 31.5 | 31.5 | 32 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 |
Sizing Notes
Measurements are stated in inches unless otherwise indicated.
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Most Helpful Favorable Review
Warm, comfy and versatile
Pat H1 year ago
Received free productThe first thing I noticed upon receiving this product was the incredibly soft fabric. The outside of the fabric is smooth and silky, and the inside is almost-fleece-like. They are extremely lightweight and pack into a very small space.
Sizing: I’m somewhere between a large and extra-large, depending on the product. The sizing of these seems just right. I’d suggest ordering on the smaller side if you intend to use them as a base layer, but maybe size up a bit if you’re going to wear them over another layer. I think that’s the beauty of these – they can be used in a variety of ways. I tried three methods; 1) with silk long underwear underneath and the Rho bottom as outerwear on a cold day, 2) as a base layer under thicker fleece pants (see pic) on a very cold, windy day, and as stand-alone pants on a sunny, snowy day. Each method offered excellent breathability and instant warmth, though I liked the feel of the Rho’s directly against my skin best.
Other benefits: The zippered patch pocket is large and secure enough to hold my phone, and the wide waistband is super comfy.
Pat HReceived free product
Masonville CO
15 people found this review helpful
Most Helpful Critical Review
Tear with one wear
callmesof1 year ago
I bought these a couple of months ago to wear as a base layer for my Iceland trip. I took the tags off the day I wore them for a hike. I liked the compression and they fit great. That being said they were on the thin side. After my hike I realized I had a small hole on my butt. I feel like for the cost of these leggings I should be able to get more than one wear with them. Very disappointing.
callmesof
NY
7 people found this review helpful
Customer Images
Pat H
Received free product
Masonville CO
Warm, comfy and versatile
1 year ago
The first thing I noticed upon receiving this product was the incredibly soft fabric. The outside of the fabric is smooth and silky, and the inside is almost-fleece-like. They are extremely lightweight and pack into a very small space. Sizing: I’m somewhere between a large and extra-large, depending on the product. The sizing of these seems just right. I’d suggest ordering on the smaller side if you intend to use them as a base layer, but maybe size up a bit if you’re going to wear them over another layer. I think that’s the beauty of these – they can be used in a variety of ways. I tried three methods; 1) with silk long underwear underneath and the Rho bottom as outerwear on a cold day, 2) as a base layer under thicker fleece pants (see pic) on a very cold, windy day, and as stand-alone pants on a sunny, snowy day. Each method offered excellent breathability and instant warmth, though I liked the feel of the Rho’s directly against my skin best. Other benefits: The zippered patch pocket is large and secure enough to hold my phone, and the wide waistband is super comfy.
Age:65–74
Weight:125–150 lbs.
Height:5'4"
Yes , I recommend this product
Mountain Girl
Received free product
Colorado
Comfort and softness!
1 year ago
I love the softness, comfort and the way this product feels. The side pockets are very useful and I like the almost invisible zipper. The waistline support is a plus. I highly recommend the Arc'teryx base layer bottoms.
Weight:125–150 lbs.
Height:5'3"
Yes , I recommend this product
Anonymous
Received free product
Colorado Springs, Colorado
Great Warm Leggings
1 year ago
A really great pair of cool weather leggings. I’m 5 ft 8 and got a size small. Very stretchy but I could have also sized up. A very pretty intense blue that’s not so bright it can’t be worn as a sort of neutral. Took these on a cool weather low intensity hike and they did great. Stretching fabric that doesn’t slide down as you move. They are a nice slick fabric on the outside with a fluffier outside to keep you warm, but not so much that they get uncomfortably warm when moving.The cut of them are also great, nice and long and high waisted with a zipped low profile pocket. Definitely recommend, cool color and sure to get a lot of use as the weather cools off here in CO. Will probably be my go-to base layer for snowboarding this season!
Age:18–24
Weight:125–150 lbs.
Height:5'8"
Yes , I recommend this product
NariSafari
Received free product
Milwaukee, Wisconsin
Useful colorful layer
1 year ago
This layer is perfect for crisp fall morning hikes when temps can change as the day gets started. It's warm enough to take the chill off and not be constricting. I love the phone-sized pocket for keeping my hands free in case I need to grab a branch.
Age:55–64
Weight:125–150 lbs.
Height:5'5"
Yes , I recommend this product
iGirl
Received free product
Arvada, CO
Super comfortable, beautiful material!
1 year ago
Fantastic fabric! The first thing I noticed about these base layer bottoms is how soft, smooth and stretchy the fabric is! I've been wearing them as an outer layer (tights) to climb, hike and travel. They are now my "go-to" tights (wear them whenever they aren't in the laundry). The color complements a lot of the tops I already have so that works well. The only slightly negative element is that teh zippered pocket on the leg is just barely big enough for my phone (iPhone14) so it is hard to get in and out. I like that it is zippered but the size is just a little small for getting in and out quickly.
Age:55–64
Weight:100–125 lbs.
Height:5'5"
Yes , I recommend this product
callmesof
New York
Tear with one wear
1 year ago
I bought these a couple of months ago to wear as a base layer for my Iceland trip. I took the tags off the day I wore them for a hike. I liked the compression and they fit great. That being said they were on the thin side. After my hike I realized I had a small hole on my butt. I feel like for the cost of these leggings I should be able to get more than one wear with them. Very disappointing.
Age:35–44
Weight:150–175 lbs.
Height:5'4"
No, I do not recommend this product
JaneG
Received free product
CO
Super Comfortable Base Layer
1 year ago
These are easily the most comfortable base layer bottoms I’ve worn. The outside is smooth but the inner layer feels like a soft blanket. I really appreciate that they don’t slide down with a lot of movement - on a cool fall hike they stayed in place and kept me warm without additional layers (but will be great under ski pants for cold days on the mountain). The small pocket fits items like chap stick or credit cards.
Age:35–44
Weight:125–150 lbs.
Height:5'7"
Yes , I recommend this product
Aimee M
New York, NY
Warm and versatile thermal layer
6 months ago
I love these pants. Warm, soft, stretchy, waistband not too tight, the perfect length for my height 5"5"...I am a textbook size M 6-8 and these fit perfectly. Worn around a cold house, for winter runs in NYC, and as an around camp base layer. They are decently low to no stink (for a synthetic fabric) after multiple wears, wash well and still look brand new. I have not noticed any quality issues like others have mentioned, but as I bought an unpopular color on super sale, my expectations are lower than they likely would be had I paid full price. Would buy again!
Age:35–44
Weight:125–150 lbs.
Height:5'5"
Yes , I recommend this product
sofiebrofie
Boston
Warm, but already fraying after 2 wears
1 year ago
I bought this for skiing and hiking and wore these skiing and after 1 or 2 wears the stitching is already fraying. It’s kept me very warm and I really like the pocket but I’m disappointed that it doesn’t seem to be holding together well and I’m not confident this will last like it should. This is my first piece from Arc’teryx and I was so excited only to be let down.
Age:25–34
Weight:125–150 lbs.
Height:5'4"
No, I do not recommend this product
restlessfeet
Arizona
Poor quality
9 months ago
Oh goodness one use and I acquired a hole on the bottom. Not the for good hiking for sure 🤦
Weight:100–125 lbs.
Height:5'2"
No, I do not recommend this product
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