• 1. The water injection port can put ice cubes, which is convenient for adding water, using, and preventing leakage.
• 2. There is a handbag at the top, humanized design handheld, convenient and practical, back breathable cotton, thickened breathable, easy to carry. Hiking is more comfortable.
• 3. Adjustable chest strap, stable back, easy to walk, humanized design interlayer on the back, convenient for the device to accompany the articles.
• 4. Back pocket humanized design magic sticker, so that the item more stable, rest assured to travel.
• 5. Detachable outer bag, easy to disassemble and wash