• This running hydration backpack is made of extra thick, tear resistant, water resistant and anti abrasion polyester.
• There are 2 adjustable length buckles on the chest, and an adjustable shoulder strap that can be adjusted according to your body shape.
• There are 4 zippered pockets on the back, 1 on the bottom left, 1 on the back, and 1 on the top. It has a large lidacity and can hold 15L items.
• The soft cushion at the back is composed of a porous mesh backrest and a comfortable cushion to prevent stuffiness and release back pressure.
• There are open pockets on both sides of the front of the backpack, and a small zippered pocket is attached, so you can equip small items outdoors.