Brand Design Men Chest Bags Casual Travel Shoulder Bag High Quality Nylon Business Crossbody Bags Multifunction Backpack For Men Male Single Shoulder Crossbody Bags Men's Chest Bag Waterproof Oxford Cloth School Short Trip Messengers Bag Satchel Handbags The lightweight feature fits well on your back / chest and does not look bulky. Equipped with an USB charging port for charging electronic devices via connecting your own power bank. You can charge your devices during a walk, gym, sport, hiking, cycling, travel, outdoor activities, and daily use. large capacity main pocket with enough space for all your essentials, one front zipper pocket, two front small pockets. Perfect for multi-occasion and everyday use. 1. Main material: Nylon 2. Lining texture: polyester 2. Buckle design, easy to wear 3. Adjustable shoulder strap design, easy to disassemble 4. Smooth zipper, smooth closing without jamming 5. Portable headphone jack, side pocket adjustment buckle, multiple practical details 6. Large-capacity loading, multi-compartment storage, reasonable structural layout 7. Dimensions: about 31 x 17 x 8cm 8. Weight: about 270g