Foldable water bottle by Alpin, suitable and useful for all your activities. It is made of silicone according to FDA/LFGB standards. Excellent resistance to drops, even when full. The auxiliary pressure valve adds air, restoring the bottle's shape, helping it never lose its form, even if placed in, for example, a bike holder or bag. The main body of the bottle can be folded when empty, saving space for more convenient transport.