• Material: Usually made from durable, waterproof PVC fabric with high-frequency welded seams to prevent leaks.
• Non-Slip Soles: Equipped with thickened, textured rubber or PVC bottoms to provide a secure grip on wet or slick surfaces.
• Convenient Closure: Typically feature a heavy-duty waterproof zipper along the back or side, paired with an elastic upper band and adjustable snap or hook-and-loop straps to keep the covers securely in place.