DetailsMen's Dare 2B Size Chart ILoft Hybrid Woolfill baffle jacket with four-way stretch arms and hood. Streamlined comfort on the move. Made from tough-wearing polyester ripstop quilted with thermo-regulating wool fill. Moves moisture away from the skin and breathes. Ilus Core Stretch fabric around the arms and hood provides quick-drying, low-bulk warmth. For fast-paced days at altitude.