SIZE - Compare other pet car seat cover, Excellent size of 54" Wide x 58" Length are larger. Our product covers the entire back seat and perfectly protect your car from scratches or mud. It designe for most backseats of STANDARD cars, trucks & SUVs. Easily convertible between hammock or standard bench coverage. HAMMOCK WITH SIDE FLAPS - It is easier for your dog to get in or out of car. Also side flaps can protect your car door from scratch, hair. Versatile split zipper hammock to allow pets and kids can share the back seat when zip up for a full hammock or zip down for half/half so dogs and passengers can travel together. WATERPROOF - Compare other backseat dog cover, our cover have two waterproof layers. The top layer is the 600D oxford with water-resistant coating, the bottom layer is the tpu which is a new waterproof material. We use heat-pressing technology to connect the top layer and bottom layer, It can achieve 100% waterpoof because of no needle holes. NONSLIP & SAFE - Our pet seat cover has a non-slip surface to prevent your dog from slipping every time you apply the brake. Also built-in nonslip backing and seat anchors to prevent seat cover from sliding around. EASY TO INSTALL & CLEAN - If you don't rear car seat cover, or whatever, we will be happy to assist you. Easy to install with quick release clips. Just snap the buckle straps around your cars headrests and tuck in the seat anchors.