Ultralight hydration bladder backpack, bicycle backpack with hydration system, 2L, ROCKBROS Bike Carrier the translation range can be

the translation range can be expanded by an additional pinion

EXCELLENT BREATHABILITY

and ensures that you have a better experience during exercise

perfect for carrying on the go

indoor cycling (optimized ventilation)

Ultralight hydration bladder backpack, bicycle backpack with hydration system, 2L, ROCKBROS Bike Carrier the translation range can be2L Capacity & Hose. The 2L capacity hydration bladder bag easily meets your drinking water needs while riding. The large diameter of the water inlet makes it easy to fill the bladder. Comfortable and Lightweight. There is an additional pocket outside the hydration bladder, made of splash proof material on the front and breathable material on the back and shoulder straps. The backpack is ergonomically designed and weighs only 331g. Dual Attachment. The