The 4-way stretch fabric of our Epic ski trousers is so comfortable, you may forget you´re wearing them. You´ll be fully protected, though, with durable, waterproof Helly Tech® PROFESSIONAL fabric, 100 g PrimaLoft® Infinity insulation, sealed seams and boot gaiters. The stretch fabric allows for a closer fit, with adjustment at the waistband and articulation at the knees. There´s a RECCO® reflector to help rescuers find you in case of an avalanche, and YKK zippers for venting.