A heavyweight women's merino wool baselayer shirt for highly aerobic days in cold conditions, the 260 Zone Long Sleeve Half Zip features zoned ventilation panels for active temperature regulation and ample breathability.

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 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. A deep front zip quickly vents excess heat, and in the higher-wear areas we add merino and polyester waffle jerseys for added abrasion resistance. Raglan sleeves and flatlock seams throughout make for chafe-free mobility during fast-paced days.