The Patagonia Merino Midweight Zip-Neck top keeps you snug. Its Merino wool and Capilene polyester fabric with jersey-knit construction discourages moisture-formation but allows inflow of air. This shirt has a tall neck that is backed by a taping to provide comfort to the wearer. A central zipper makes removing or putting on the top, a hassle-free experience. Additionally, this closure has kissing welts to prevent the zipper from grazing the skin. Its underarms feature a flexible gusseted material that lets the hands move without restriction. The elastic thumb loops on each of the long sleeves cover the hands as desired.