Water ResistantMade of waterproof, tear-proof nylon fabric, reinforced needle thread on the foundation, comfortable, light and durable, suitable for various climates and environments, but not suitable for long-term immersion in water. | Breathable Back MaterialMade of thick fabric and breathable mesh back panel, which can effectively dissipate back heat. The breathable mesh shoulder strap is equipped with a sponge pad to disperse shoulder pressure and even strength. | D-Type Hanging SlingDerived from military equipment,now can be used to hang umbrellas, water cups, helmets, compasses and other small outdoor products. | Velcro DecorationAs one of the decorations of the backpack, you can also paste anything you want, such as small stickers or logo patches. |