The versatile, multi-talented backpack is designed for biking, but thanks to its large amount of functionality and excellent carrying comfort, it is also suitable for other types of sports or normal use. Inside there is a hydration bladder with a capacity of 2 litres, a glasses compartment and a tool compartment. EVOC Hydration Bladder 2 litres This hydration system completes your EVOC backpack. The material is BPA/PVC-free and tasteless. The large opening makes filling easier and the quick-release fastener between bladder and tube makes cleaning easier. The mouthpiece can be closed so that nothing accidentally leaks out while driving. Air pad system With a combination of 5 ventilation channels (1 main channel + 4 secondary channels) and 6 strategically positioned 3DAir mesh pads, the AIR PAD SYSTEM offers the optimal combination of a body-hugging, load-neutral fit and ventilation of the back. The shoulder straps with air mesh and large ventilation openings ensure not only good support in every situation but also the best breathability.