do not carry heavy items in this, it is fine as a temporary storage item, but if you stuff it full and carry things it will degrade quickly, its thin, I bought one for grocery storage in the car, and one I used to line the interior of a cat house for winter, I cut a square hole at the door and tossed in a pet heating pad with timer, it works perfectly. dang cat wont leave the box. Its also worth noting, that like other fabrics and synthetics from China, DO NOT leave sitting in sun for extended pSee full review