The Rab Men's MeCo 120 Top offers lightweight, quick drying performance that's ideal for a wide range of activities. Wear it as a quick drying shirt on fast paced hikes or layer it under your waterproof shell during the winter. Either way, you'll reap the benefits of exceptional moisture management keeping you cool in the summer and warm in the winter. Combining the best characteristics of merino wool and polyester, this performance top has the antimicrobial properties of merino wool with the quick drying comfort of polyester enhanced with Cocona technology. Other cool details include smooth flatlock seams and reflective hits for extra visibility after dark.