Icebreaker Women's 260 Zone Long Sleeve Half Zip A heavyweight women's baselayer zip shirt with optimized fabric zones for active performance, the 260 Zone Long Sleeve Half Zip is a technical top for highly active days in cold conditions. The Zone features our BodyfitZONE(TM) construction, which combines stretchy merino wool jersey fabric with strategic panels lightweight eyelet merino mesh to improve ventilation and help control temperature during high-output pursuits. Features: FABRIC WEIGHT: 260 Midweight FABRIC: Body: 97% Merino Wool, 3% LYCRA(R). Panels: 78% Merino Wool, 22% Polyester. Eyelet: 98% Merino Wool, 1% LYCRA(R), 1% Nylon PRODUCT WEIGHT: Medium = 260 g / 9.17 oz