Lightweight, Breathable, Technical Fleece Fabric 100% recycled polyester jacquard fleece with hollow-core yarns features a unique zigzag texture that wicks moisture, dries fast and is highly breathable for high-output activities Offset Raglan Seams Offset raglan seams sit comfortably under pack straps Soft Binding at Cuffs Seals in Warmth Soft elastic binding at cuffs for added stretch and to seal in warmth Snapped Neck Snaps at the neck for additional venting during uphill movement or high exertion it’s a great item I just needed a size small