23ZERO CO-Winter Insulator – Rooftop Tent LinerCO Winter Insulator Rooftop Tent Liner by 23ZERO Stay warm and cozy during chilly adventures with the 23ZERO CO Winter Insulator. Designed to easily clip onto your existing rooftop tent frame, this insulation liner adds a comfortable layer of warmth while keeping weight to a minimum. Featuring double zippered doors at the front and back, entry and exit are effortless without letting the cold sneak in. Its streamlined design ensures a snug fit inside