An ultralight merino base layer top designed to help regulate body temperature during high-intensity activity, the 125 ZoneKnit™ Short Sleeve Crewe features our jersey Cool-Lite™ fabric for adventure and everyday training. Icebreaker 125 ZoneKnit SS Crewe Womens Features: ZoneKnit™ - Engineered body mapped technologyto regulate your body temperature andlet your skin breathe during high-intensity activity Cool-Lite™ - A lightweight and breathable fabric blend Raglan sleeve construction for mobility Gusseted underarms for mobility and comfort Flatlock seams to prevent friction Drop tail hem for added coverage