The Icebreaker W 125 ZoneKnit SS Crewe is a lightweight merino base layer top designed for high-intensity activities. It features Cool-Lite™ fabric, a blend of merino wool and TENCEL™ Lyocell, which helps manage sweat and resist odors. The ZoneKnit also includes strategically placed panels of eyelet Cool-Lite™ mesh to regulate body temperature. Raglan sleeves and gusseted underarms provide enhanced mobility, while flatlock stitching eliminates chafing. This base layer is perfect for everyday training and adventures.