Challenger Outfitters marine bag is a rugged heavy-duty duffel bag that's so tough. Made from high quality, water-resistant vinyl, the marine bag is perfect for boating, fishing, camping and all your outdoor adventures. Challenger outfitter's marine bag is spacious enough for your scuba equipment yet lightweight enough for your hiking trips. Features: Doubles as a backpack, water-resistant, made of high quality durable vinyl material, shoulder straps are padded, adjustable and detachable, 4 compression straps, large mesh zippered pocket in main compartment, lightweight, heavy-duty, spacious and sturdy, side duffel carry handles, ID pocket on top, molded bottom adds structure. The marine bag is perfect for: Boating and sailing, camping gear, scuba equipment, hiking gear, long vacations and business trips, fishing gear, life's many adventures. Details and dimensions: 27"l x 16"w x 13"h - volume: 92 liters (5,616 cubic inches) - can hold up to 24.3 gallons (us liquid) or 20 gallons (us dry).