Thunder set, insulated with 3M™ Thinsulate™ fabric, is perfect for mild winter. Efficient polyurethane membrane, tapped seams. Effectively protects from wind, chill and rain- snow falls, while retaining light weight and maximum freedom of movement. 3DX camouflage effectively blends with the surroundings. The ZEPHYR ventilation system and FLEX hood are used in the set.