The Airhole is standard on all of AIRHOLE's masks and is designed to allow breath to escape freely, avoiding the build up of condensation to keep you dry, warm and goggles fog free. 10,000MM softshell is their most technical fabric construction that is designed to perform in harsher conditions. The fabric combines water repellency, wind resistance and superior comfort. The outer layer prevents icy winds from lowering your temperature and a DWR (Durable water Repellent) coating beads water to prevent the fabric from becoming saturated.