A goggle drying bag is a must when riding in the winter or when it rains! These snowmobile bags are designed specifically for a spare set of goggles. Keep the bag under the hood and it will heat, clear and dry your wet and fogged goggles in no time! Plus, it protects your goggles during bumpy rides. Compatible with REV Gen4 (Narrow). Designed specifically for a spare set of goggles. Under hood heat clears and dries wet fogged goggles. Protects goggles during the ride. - Neo, REV Gen4 (Narrow)