HOLD & CARRY - Comfortable Extra handle
The elastic ropes act as a way to attach the bottle to your other things, you can carry the bottle comfortably by tying it to your backpack, tying it to a bicycle frame or to a tree branch, or any number of options to make carrying your bottle easier.
The elastic ropes, unhooked from the bottom, act as a comfortable handle and thanks to the “bouncing” movement generated by the elasticity of the strings, the perception of the weight of the bottle is lighter.