The XB-4 cot is built of heavy duty steel to be strong and durable and easily folds for quick set up and storage. It includes a 1-3/16' thick foam mat for extra comfort. It is constructed with 1" rust resistant Epoxy powder coated steel tubing and poly/nylon fabric with PVC backing deck that is surrounded by 44 springs to make it very comfortable. This steel cot is so reliable and convenient, it has been the cot of choice by the American Red Cross, FEMA as well as shelters, hospitals and homes for over 40 years. Perfect for house guests, camping shelters, government facilities, emergency response and many different institutions. The cot was designed for comfort, convenience, and durability.