Lemonworld Duffle Backpack, Portable Travel Luggage Bag Nylon Foldable Shoulder Backpack Lightweight Handbag for Men Women Outdoor Sports Gym Vacation 1.Nylon Material ,Waterproof and Durable, unfold demensions: 17.2x 10x10inch, Fold dimensions is 2x10x10inch , Capacity: 25L 2.Multi-purpose Use: This bag can used as backpack/ tote bag/ handbag/ messenger bag/ shoulder bag/ briefcase, you can carry it with one handle, or two shoulder straps, it's not a simple backpack, it's a multipurpose bag. 3.ComfortableWide and soft shoulder straps with plentiful sponge padding help relieve the stress from your shoulder, and you can to adjust the length of the shoulder straps if you need. 4. Convinient: unfold it when you need to use, ideal for Gym, Sports, Travel, Carry-on, Luggage, Camping, Hiking, Yoga and other outdoor activities 5.Summarized with two words"Simple" and "big". It can be used for short trip, sports, shopping and school attendance