Soft-Shell Roof-Top Tent Winter Liner Insulated 4-Season Insert for Walkabout and Breezeway RTTs The winter insulation liner helps keep your 23Zero rooftop tent warm and cozy. It easily clips to the existing frame inside your roof top tent to provide an extra layer of warmth. Double-zippered front and rear doors allow for easy entry and exit, even in the coldest conditions. Key Features Fits easily inside your existing tent Lightweight polyester fill to reduce weight Double-zippered entry front and back No other zippers to stop cold sneaking in through other parts of the liner Fits both Walkabout and Breezeway series Looking for more ways to stay warm? See our Plan For Cold Weather Camping Tips