How to Choose Base Layers

Comfort starts with your base layer. Made for wicking and warmth on low-output days, the women's Arc'teryx Rho lightweight zip-neck base layer top feels supersoft, moves with you and layers easily.
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Imported.
View all Arc'teryx Women's Base Layer TopsBest Use | Multisport |
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Shirt Type | Partial-zip |
Fabric | Torrent 84% polyester/16% elastane (bluesign® approved) |
Underwear Weight | Lightweight |
Sleeve Length | Long Sleeve |
Gender | Women's |
Sustainability | Contains materials that meet the bluesign® criteria |
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 | |
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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 |
Measurements are stated in inches unless otherwise indicated.
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This Arc'teryx Women's Rho Zip-Neck Base Layer Top provided me with a great wearing experience. The fabric is soft and has excellent insulation, making it ideal for outdoor activities in cold weather. The slim fit is very flattering without being bulky, and the zipper design allows for easy temperature adjustment. I especially like its breathable yet warm features, making it perfect as a base layer. One thing to note is that the sizing runs small, so I recommend sizing up. Overall, highly recommended!
Soft fleece inside makes it extremely comfortable. Attractive shape and fun color. Great durability. Definitely my go-to top!
Wore this as a base layer for an evening out to the Civic Orchestra via CTA. Stayed wonderfully warm.
I returned this for various reasons. Collar should have been higher up for winter skiing, etc. The arms should have had wrist holes. The zipper should have been longer to vent on high output activities. For the high price of this item, they really could have made the zipper longer and the sleeves have wrist holes or whaterver you call them.
Perfect for winter biking, ice skating, alpine skiing (with a shell or puffy on top). Often between S or M but M was perfect; not too long in torso (I'm 5'4; 128 broad shoulders). Can fit a thin layer under or just enjoy the plush interior of this top. Nice looking for apres bike/ski/skate.
Comfortable, extra warmth with a thin layer of fleece inside, attractive shape and color.
Love this base layer. I use it for mostly for skiing and camping. Just the base layer and ski jacket is enough to keep me warm on a 30ish temp day. Held up well through many washes.
Warm and breathable! I have used it for hiking and cross-country skiing so far and I love it. I am 5ft6, weight 175 pounds and curves and I have bought the large. Fit is perfect.