Foldable water bottle from Alpin suitable and useful for all your activities. It is made of silicone according to FDA/LFGB standards. Excellent resistance to falls, even when full. The pressure relief valve adds air, restoring the shape of the bottle, helping it never lose its shape, even if it is placed, for example, in a bike case or bag. The main stem of the bottle can be folded when empty, saving space for more convenient transportation.