Lightweight and durable: made from 500 heavy PVC with a sturdy welded seam which is designed for years usage tear rip and puncture-proof. Perfect for almost any extreme adventure you can imagine. Waterproof guarantee: solid roll-top closure system provides secure watertight seal. Keep your gear dry in any wet situation where the bag is not fully submerged. Protect your valuables from water snow mud and sand. Easy operation and cleaning: just put your gear in bag grab top woven tape and roll down tightly 3 to 5 times and then plug buckle to complete seal whole process is very quick. Our waterproof dry bag is easy to wipe clean due to its smooth surface. Perfect size: slightly larger than the small waterproof bag, hide your and a friend's phones, wallet, keys, and more from your exploration of mother nature. Each medium dry bag includes an adjustable and removable shoulder strap for cross-body or shoulder carrying. Measurement: 11.5"W x 15.5"H x 6.5"D.