RealFleece™ - Brushed icebreaker merino wool provides softness next-to-skin. Cool-Lite™ - Lightweight and breathable fabric blend that helps keep you cool and quick drying. Hidden chest pocket. Icebreaker iconic hood. Offset shoulder seams to help reduce friction. Underarm panel in eyelet mesh for ventilation. Cuff with thumb loops and “Hand Warmer” mitten. Offset side seams. Dipped hem for extra coverage. Flatlock seams to help reduce friction. Back HPS: 71.5cm (Based on size M).