• 18L Large Backpack Capacity: The 18L large capacity hydration bladder provides enough capacity to store sports towels, hats, umbrellas, etc.
• 2L BPA Free Hydration Bladder: The hydration backpack is equipped with a durable, kink-free sip tube, and push-lock cushioned bite valve.
• Streamlined & Compact Design: The adjustable straps make the backpack fit your back perfectly. It has a soft air mesh back and wide webbed shoulder straps.
• Breathable & Double Insulated Layer: The hydration backpack is made of breathable mesh padding and high-quality splash-proof nylon fabric and a double-insulated layer.