Tempress All Weather High Back Seat 30 oz. Marine grade UV Stable vinyl, and high density foam inserts Double contoured seat pan that eliminates pressure points Stainless steel hinge pins secure the fold down back Includes 1/4 inch x 20 t-nuts allow mounting to any Standard marine swivel, slide, or seat Spider Custom fitted cushion Contoured seat pan and Lumbar support Durable long lasting construction Accepts Quick Disconnect (QD) mount Folds down for travel Multiple Color options