Heavy-Gauge 6P PVC with Cold-Crack Additive, Slick Durable PVC Tarpaulin Bottom, Dual Functionality for Sledding + Towable * Heat Sealed Seams * Patented Speed Safety Valve for Fast Inflation and Deflation * Double Webbing Foam Handles with EVA Foam Knuckle Pads * Heavy-Duty Double Stitched Partial Nylon Cover