Angelbubbles Hydration Pack with 2 Liter TPU Bladder for Bicycle Cycling Riding Running Camping Hiking Adjustable shoulder strap and waist strap to fit your need Includes storage compartments that will fit your clothes, iPad, phones 11 The main compartment is covered with super light waterproof nylon material which serves two functions. It is water resistant so your belongings stay dry in light/medium rain. It is also durable reduces wear and tear so your pack lasts longer. Includes a 2 Liter/66 Oz. TPU Free bladder which keeps you hydrated. It also keeps the water fairly cool. Enough to get you through a day of hiking, cycling, running or biking Size: 42cm x23cm x17cm(Height x Width x Thickness)