Icebreaker Merino 260 Tech Long Sleeve Half Zip Thermal Top - Men\'s A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Half Zip is a go-to piece for winter layering, made with 100% merino wool. The Tech base layers are built for cold climate activities. Made from 100% merino, the 260gm jersey fabric is designed to keep you even warmer than our Oasis base layers. Enjoy the natural benefits of merino, including odour resistance and temperature regulation so even when it’s keeping you warm, your body can breathe. The Tech is an essential part of your winter layering system. Features: 100% Merino - Soft merino fibers that regulates body temperature in all weather conditions and resists odors Gusseted underarms for mobility and comfort Offset shoulder seams to prevent friction Flatlock seams to prevent friction Backward set side seams to prevent friction Half zip-neck design Layer: Base Layers Best for: Hike Snow Sports Merino Benefits: Comfort Odour Resistant Breathable Warm Slim Fit - A snug, close-to-body fit for low bulk layering. Model Size: Medium Model Height: 6\'3\"  /  191cm. Waist: 33.1\"  /  84cm Back High Point Shoulder to Hem (Size L): 29.68 in  /  75.4cm  Technical Features: Fabric: 100% Merino Wool - 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 (Medium):  11.6 oz  / 330 g Product 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.