How to Choose Base Layers

From ski tours to climbing trips, move through the mountains in thermoregulated comfort with the men's Arc'teryx Rho Merino Wool Crew Neck base layer. It's made of a soft yet and durable wool blend.
Imported.
View all Arc'teryx Men's Base Layer TopsBest Use | Snowsports Multisport |
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Shirt Type | T-shirt |
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 | Midweight |
Sleeve Length | Long Sleeve |
Gender | Men's |
Sustainability | Wool certified to the Responsible Wool Standard (RWS) Fair Trade Certified |
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.