This is the Akona Atacama 20 Liter Dry Stuff Sack Roll-top Dry Bag Features: Welded seam construction to seal out water Roll top and buckle closure 23 tall X 8" diameter - 10oz 0.3mm TPU Shoulder Strap Adjustable strap This bag has nothing to hide. Using AKONA's WaterShield technology, the Atacama is great for keeping gear away from water and the translucent material makes spotting gear easy."