The comfort and performance attributes of bamboo with the natural characteristics of wool combined in a great base layer for all-day, everyday riding. Feels exceptional next to skin and works with your body, adapting to keep you comfortable in all conditions. Both bamboo and merino fibers naturally resist odor. Moisture wicking, fast drying and UPF 50+ protection. Thumb-holes ensure sleeves stay in place and don’t ride up. 65% Viscose from Bamboo / 30% Merino Wool / 5% Elastane. Choose Men’s sizes M-XXL, or Women’s sizes S-XL. Black.