Women's Icebreaker Merino 260 Crew Neck Long Sleeve Base Layer. Thermal regulation at it's very best. The Warmest base layer offering from the Icebreaker 100% Merino collection, the Women's Merino 260 Tech Crew Neck Base Layer in a Slim Fit structure. The Merino 260 Tech range offers the best Warmth to Weight ratio of all the Icebreaker Merino base layer collection. Soft next to your skin whilst still keeping you warm, for that optimum temperature regulation in extreme cold. Fibre is pre-shrunk at production stage so you don't lose shape and size during wear or after washing. Minimal strategically placed ultra-soft sewn seams with exceptional integrity, to avoid chafing and any risk of seam abrasion. Long body hem for added coverage when bending over so your lower back stays covered. Low impact brand decal. Anti-Bacterial Odour Control to ensure you stay fresh whilst trekking, travelling or traversing. Insulating 260 GSM Merino Wool base layer of exceptional quality that can also be machine washed easily at 30°.