Affordable and comfortable, West Marines Flotation Cushions satisfy USCG requirements for throw-able flotation. Featuring an outer shell constructed from durable, ripstop nylon and flotation foam made from resilient PVC, this flotation cushion is a comfortable seat and will last season after season. Two grab straps aid in throwing during rescue and then double as convenient carrying handles once danger is far and away. Specifications USCG Type: IV Dimensions: 15” x 16” x 2 1/2" Buoyancy: 18lbs. Flotation Material: PVC foam Shell Material: Ripstop nylon and polyester Warranty: One year