The perfect pairing to the TentBox Classic Roof Tent, the Winter Insulation will add extra warmth for camping trips in the colder months. Made with quilted polyester and a synthetic filling, it attaches to the inside of the TentBox Classic, and can easily be removed when not needed. Zip-around door and window openings also line up to the roof-top tent's entrances and viewpoints, so you can still enjoy easy access and sight-seeing.