The best piece to have next to your skin as part of a layering system for riding in damp or wet conditions. This baselayer combines high quality Merino wool and moisture-wicking polyester in a strategic blend for exceptional performance. It\'s cycling specific shape, thumb loops if you need to seal in the warmth, and soft merrow seams create a comfortable foundation for cold weather and changing conditions P.R.O. Transfer Dry Merino provides optimal moisture transfer, dry time and odor absorption Cycling specific fit with rotated sleeve construction All season versatility Anatomic close to body fit Fabrics: front 86% Merino wool 14% nylon; back 62% polyester 38% Merino wool Weather Forecast: Cool and wet Temperature Rating: 10 degrees