K Hydration Pack Bladder bagSatisfy your thirst for adventure: This lightweight and comfortable hydration backpack is a terrific companion to keep you hydrated while running ,cycling, hiking or any adventure outdoors. And this pack comes with a pouch on the back to store your phone and essentials.[Durable hydration Pack]- Hydration pack made rugged oxford fabric and nylon lining, resistant to tears and abrasion. Durable plastic insert buckles with ultra-high hardness.[Perfect Outdoor Choose]- It is in slender and portable design, middle handle strap, adjustable chest webbing and shoulder straps.[Designed for convenient]- This cycling hydration backpack has hands free hydration hose which bite valve, gently biting the valve