Arc'teryx Rho LTW Zip Neck Top Men's

Rho Series: Thermally efficient moisture wicking base layer. LT: Light Weight. Built with highly durable to performance materials but designed with a streamlined minimalist set of features to provide very light weight. A natural base layer for prolonged backcountry use. Itchless stretch knit Mountain Merino remains nearly odourless and soft next to skin, while retaining insulative properties when damp. An elastane infusion helps them stay in shape for extended adventures. Wool naturally adjusts its thermal properties in response to changing humidity levels. What this means is that because wool generates heat as it becomes damp yet remains warm when wet, in cold temperatures the body retains warmth during exertion, whereas in hot temperatures, the dampness spreads across the wool and cools the body. Rho LTW layers provide a close fitting garment that maintains its shape and aids in transferring moisture away from the body. Merino wool is naturally odor resistant, even with prolonged wear. Features: Great warmth to weight ratio Warm when wet Minimal odour retention No lift gusseted underarms Chest half zip Laminated chest pocket with laminated zip Next to skin fit Weight: 280 g 9.9 oz Materials: 5% Elastane Mountain Merino Wool 95% New Zealand Merino wool, 5% elastane