Cycling enthusiasts, once you try the Thule UpTake Bike H2O 4L backpack, you won't be able to go without it on your rides! Compact and featuring a hands-free return tube, this backpack is perfect for staying hydrated without slowing down during your ride. Its 2.5-liter water reservoir is ideal for a day trip. You can store your belongings in the main compartment of 4 liters, enough to carry a pump, tools, or even your sandwich. Ultra-comfortable, the UpTake 4L backpack is perfect for your cycling trips!