Material: The collapsible bottle is made of BPA-free food grade silicone, ensuring your safe drinking, non-toxic and tasteless beverages. It is suitable for water or other beverages. This bottle is not anti-scald and is more suitable for warm water or beverages, we do not recommend using it with liquids above 140F (60C) to avoid scalding your hands. Dimensions and Capacity: Folded dimensions are 2.76"W x 6.7"H, 8 oz capacity. Unfolded measures 2.76"W x 9.84"H and holds 18.5 oz. PORTABLE AND FOLDABLE: The silicone water bottle is lightweight at only 6 oz. Two styles in one bottle, you can fold it for easy packing and carrying or storage. If you need more storage space, just expand. Very space saving. It also comes with a carabiner that you can attach to your bag. LEAK PROOF AND EASY TO CLEAN: The collapsible water bottle is designed with a silicone seal to prevent leaks. When using for the first time, it is recommended to soak in boiling water for 15 minutes for thorough cleaning. GREAT FOR TRAVEL, SPORTS AND OUTDOOR ACTIVITIES: It's shatterproof, flexible and durable, because the collapsible silicone water bottle comes with an aluminum carabiner, you can hang it on a backpack or other bag for easy portability. Good choice for travel, gym, cycling, running, camping, fishing, hiking, climbing, yoga, beach, outdoor sports.