Expedition Series Duffle BagDescription Built for the most rugged adventures, the Expedition Duffel Bag is designed with input from our intrepid dive team to meet the demands of explorers and divers everywhere. Crafted from heavy duty mesh PVC with a double lined, hard wearing base, this bag is as tough as the environments you'll use it in. Shaped, adjustable, padded rucksack carry straps make carrying ultra comfortable, and the removable straps allow for seamless