The Friendly Swede Duffel Bag with Backpack Straps for Gym, Travels and Sports - SANDHAMN Duffle (60L) Made of 500D clean PVC Tarpaulin - free from Phthalates and BPA. REACH compliant. Durable, waterproof fabric - however note that zippers and seams may leak if held under a waterfall or submerged. Adjustable backpack straps are easily attached or detached. 30 liter duffel also features a zippered outer pocket for easy access to small items.