These water bottles are made of safe food grade platinum silicone for safe drinking, BPA free and odorless, with durability and leak proof performance. Lightweight water bottles are foldable for easy storage, are made of eco friendly materials to reduce pollution caused by plastic, and come with straws for easy use. The bottle mouth has a silicone sealing ring to prevent water splashing, it is reusable, easy to clean, and can be hung on a backpack, which is very suitable for travel carrying. The soft water bottle has a 620 ml/21 oz capacity, and the bottle body is 8.7 inches tall when unfolded, 2.9 inches wide, and only 2.5 inches tall when folded, saving space. It’s a leak proof, flexible, reusable water bottle that can be attached to a backpack or sports bag and taken with you wherever