Our technical, cold-weather base layer top for highly aerobic days, the 260 Zone Long Sleeve Crewe features zoned ventilation panels for active temperature regulation and ample breathability. Features BodyFitZone - features breathable zones for high intensity activity Thumb loops keep your sleeves in place and hands warm Raglan sleeve construction for mobility Gusseted underarms for mobility and comfort Flatlock seams to prevent friction Drop tail hem for added coverage Back High Point Shoulder to Hem: 72.7cm based on size M Care Machine wash warm. Wash with like colors. Do not use softeners. Fasten all closures to wash and dry. Do not bleach. Do not tumble dry. Line dry in shade. Warm iron. Do not iron print, trims and accessories. Do not dry clean. Slim Fit - A snug, close-to-body fit for low-bulk layering. What makes it a Zone base layer? When you see Zone, think high performance. These base layers feature engineered body mapping technology to regulate your body temperature and let your skin breathe during high intensity activity. Combining merino jersey with strategically placed mesh panels for active ventilation, the Zone series ranges from lightweight to heavyweight for year-round layering during your adventures and everyday training.