Evoc cc 3l backpack 2l bladdervery compact hydration backpack with optimized aeration back part featuresvolume 3l weight 270g size 20cm x 45cm x 4cm material nylon 210d ripstop pu coated p600d pu coated 3d air mesh air mesh including hydration bladder 2l fleece padded extra compartment for small parts detachable hip belt multifunctional elastic strap system for external fixations reflector elements for additional safety accommodates hydration systems up to 3l clip for hydration tub