A midweight merino base layer top designed to help regulate temperature during high-intensity activity, the 200 ZoneKnit Long Sleeve Crewe features 100% pure and natural merino wool. Features ZoneKnit - Body mapping technologydesigned to actively regulate body temperature andlet skin breatheduring high-intensity activity Raglan sleeve construction for mobility Thumb loops to keep your sleeves in place and hands warm Gusseted underarms for mobility and comfort Flatlock seams to prevent friction Drop tail hem for added coverage 100% Merino Wool 200 Lightweight Care Machine wash with similar colors. Do not use softeners, do not use bleach. Dries fast in the shade, do not tumble dry. Do not dry clean. Exact instructions on the care label.