2L Bike Bicycle Camel Water Bladder bag Bladder Hydration Backpacks Camping Hiking Water Bag 2L Hydration Wide Mouth Water Bladder Bag-Cycling Hiking. Tube connected to the bottom of the bladder. Can be put into backpack and backpack's shoulder strap. Can be used to store water with 10 to 50 degree celsius. Package include: 1x 2L Bicycle Mouth Water Bladder Bag(other accessories are not included)