Whether you're doing all day laps at the ski area or sledding in the backcountry, you need baselayers that help keep you warm and dry. SmartWool's warmest baselayer, the SmartWool Men's NTS Mid 250 Color Block Crew Top offers all the benefits of no-stink Merino like natural temperature regulation and moisture management. Chafe-free seam construction and offset shoulder panels offer more comfort with a pack. Wear as a single layer in cool weather or layer up for cold weather performance. Features: Form Fit Interlock knit Crew neck with set-in sleeves Shoulder panels eliminate top shoulder seams Flatlock seam construction designed to eliminate chafing Machine washable UPF 50 + Knit in Vietnam: 100% Merino Wool