It has 3 sets of D-rings down the back, a crotch strap and a strap for the arms. It also has a strap in front to prevent the arms from being pulled over the head. It is made of Heavy duty 10 oz. duck cloth canvas. The entire piece is sewn together using upholstery thread. Stitching is reinforced for strength. Heavy duty Dee rings and snaps are made of nickel plated steel. See a 360 rotating view here: http://www.monkeydungeon.com/images/3%20d%20ring%20strait%20jacket%20rotate.gif This price for any size up to XL. We can make these larger- up to 6XL are available for a few dollars more.