• U-dock the terminal end of your hydrolok zipper that ensures a completely airtight seal • Thickskin shell made of high-density nylon and thick tpu lamination to be puncture- and abrasion-resistant • Dryhaul straps in the hands or on the back, they’re as durable as they are comfortable • Metallock hardware this hardware can take on smacks and whacks without breaking. • METALLOCK™ HARDWARE: Makes the bah tough as nails • DRYHAUL™ STRAPS: As durable and they are comfortable.