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 its 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 conditionspro transfer dry merino provides optimal moisture transfer dry time and odor absorptioncycli