The Dart Zip Neck is a classic, all-season, all-mountain technical baselayer made from 100% recycled APEX ECO fabric. It offers an ideal combination of warmth, moisture-wicking, and breathability, with POLYGIENE® permanent odor control for freshness on multi-day wear. The baselayer is constructed using light, wicking, and soft APEX ECO 100% recycled polyester fabric with a super-wicking pique textured backer. It features a ¼ length YKK Montane reverse coil semi-auto front zip with an internal zip guard, and flatlocked seams for comfort and durability. The lightweight, highly breathable fabric makes it ideal for versatile and fast-paced activities, regulating warmth and wicking sweat while preventing odor with its anti-bacterial properties. Fabric specifications: 100% APEX ECO 100% recycled polyester with mechanical stretch.