Warm and Comfortable: The back and the bottom of the seat can be heated at the same time. Just contact the seat to the USB power (Not Included), and push the button, you have a warm and comfortable seat. Material: The heated seat is made of high quality 600D oxford polyester material, has a waterproof bottom, which is non-slip. you can always enjoy dry, clean seats even in outdoor wet environments. Designed with an underside strap and buckle, it can be secured easily and quickly to most and . with backpack straps, you can easily carry the seat to stadium, beaches and park etc. Extra Wide: The seat is stable and foldable. you can choose the most comfortable position to enjoy your happy time. Occasions: It is quite suitable for sports events, outing, camping, travelling, garden party, hiking, picnic, BBQ, backyard, beach, fishing, etc. Colour:black Material:Oxford cloth + cotton + heating sheet Size:40 X 40cm Package Contents: 4 x Heated Stadium Seats Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.