The Hestra Women's Patrol Gauntlet Snow Mittens are warm and durable, made from proofed Army Goat Leather. They have a removable polyester liner with G-loft insulation, making the liner easy to take out to dry or wash. The G-Loft insulation is a very thin polyester fiber with exceptionally high insulating capacity, even in wet conditions. G-loft is quick drying, ventilated and very compressive. They have a pull strap with a Velcro closure around the wrist for a secure fit.