Featuring lightweight, breathable fabric with odour control treatment, the Women's Sonic Long Sleeve Zip will keep you fresh on multi-day adventures. It offers a layer of protection on cooler days when you need extra warmth or as a standalone tee in the milder weather. Built with Dryflo Air fabric, it is a fast-drying, quick-wicking and highly breathable tee. As it effectively moves moisture away from the skin, it's ideal for use in your mountain layering system. Lightweight, wicking Dryflo Air fabric offers rapid drying and maximum airflow to keep you cool and sweat-free. Stays fresh over multiple days thanks to an odour control treatment. Add extra ventilation when you need it with the deep chest zip. The strong microactive seams are comfortable next to your skin. Gives you a full range of arm movement with raglan sleeve construction. Keep sleeves in place with the hidden stretch thumb loops.