How to Choose Base Layers

When it's cold outside, the men's Arc'teryx Rho Merino Wool base layer bottoms are your lightweight option for medium output. They add warmth, thermoregulate and feel soft and comfy next to your skin.
Imported.
View all Arc'teryx Men's Base Layer BottomsBest Use | Multisport Snowsports |
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Fabric | 240 g/m2 Mountain Merino wool: 95% wool/5% elastane; Chira 6.5 oz. (220 g/m2) stretch nylon interlock: 71% nylon/29% elastane (bluesign-approved material) |
Moisture Wicking | Yes |
Underwear Weight | Lightweight |
Inseam (in.) | 32.5 inches |
Gender | Men's |
Sustainability | Contains materials that meet the bluesign® criteria |
XXS | XS | S | M | L | XL | XXL | XXXL | XS Short | S Short | M Short | L Short | XL Short | XXL Short | S Tall | M Tall | L Tall | XL Tall | XXL Tall | 28 | 30 | 32 | 33 | 34 | 36 | 38 | |
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Chest | 33 | 35 | 37 | 40 | 43 | 47 | 51 | 54.5 | 35 | 37 | 40 | 43 | 47 | 51 | 37 | 40 | 43 | 47 | 51 | |||||||
Sleeve Length | 30 | 31.5 | 32.5 | 34 | 35 | 36 | 37 | 38 | 32 | 33 | 34 | 35 | 36 | 37 | 33 | 34 | 35 | 36 | 37 | |||||||
Waist | 27 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 48.5 | 29 | 31 | 34 | 37 | 40.5 | 44.5 | 31 | 34 | 37 | 40.5 | 44.5 | 30 | 32 | 34 | 35 | 36 | 38 | 40 |
Hip | 32.5 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 54 | 34.5 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 36.5 | 39.5 | 42.5 | 46.5 | 50 | 35.5 | 37.5 | 39.5 | 40.5 | 41.5 | 43.5 | 45.5 |
Inseam | 31 | 31 | 31.5 | 32 | 32.5 | 33 | 33 | 29 | 29.5 | 30 | 30.5 | 31 | 31 | 34.5 | 35 | 35.5 | 36 | 36 | 31.5 | 31.5 | 32 | 32 | 32 | 32.5 | 33 |
Measurements are stated in inches unless otherwise indicated.
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Despite my commitment to its care ($$$), I diligently followed the provided washing instructions. However, regrettably, it has stretched to an extent that renders it irreparable.
Hi there, we are sorry to hear about the issue you are experiencing with your Rho Merino Wool Bottom. We appreciate your feedback and will pass this along to our design team for review. We recommend completing a Product Service Request form and one of our representatives will see if we can help you in any way. https://arcteryx.com/ca/en/help/product-service/service-request
Warm, great fit, very comfortable cut, odor resistant. Material feels wonderful against the skin and looks good too. Haven't had issues with it after washing (30ËšC) and drying (mild cycle).
These are the perfect fall to early winter running companion. The wool is super soft against the skin! Can't wait to wear these for a long time.
Not worth the price. I could not in all honesty recommend this product.
Hello Davy, thank you for your feedback on the Rho Merino Wool Bottom. We’re sorry to hear it didn’t meet your expectations. We aim to provide high-quality products that deliver value, so your input is important to us. If there’s a specific issue you experienced, we’d love to hear more so we can improve. Please don’t hesitate to reach out to our team!