BodyfitZONE Merino 260 Zone Long Sleeve Half Zip Thermal Top - Men\'s Our technical, cold-weather base layer top for highly aerobic days, the 260 Zone Long Sleeve Half Zip 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 Zipper chin guard to prevent friction Drop tail hem for added coverage Slim Fit - A snug, close-to-body fit for low bulk layering. Layer: Base Layers Best for: Snow Sports, Hike Merino Benefits: Comfort, Odour Resistant, Breathable, Warm Model Size: Medium Model Height: 6\'3\"  /  191cm. Waist: 33.1\"  /  84cm Technical Features: Icebreaker BodyfitZONE™ base layers employ our most advanced temperature-regulating natural technology. Soft and odor-resistant merino is used in different fabric forms to trap heat where it’s needed and release it when working at high intensities. Zoned temperature regulation Engineered to move freely Fabric: Body: 97% Wool, 3% Elastane Panels: 100% Wool Eyelet: 98% Wool, 1% Elastane, 1% Nylon Merino is super lightweight, soft, non-itchy, non-clammy, warm in the cold and cool in the heat, and has a miraculous ability to resist odor. Fabric Weight: 260 Midweight (The numbers represent the fabric\'s weight in grams per meter) - Best suited for colder conditions Weight (Large):  11.46oz  / 325g 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.