Description:Food grade material, no smell, eco-friendly and safe to use. Screw cap mouth design, easy to fill water or add ice, easy to operate, and can effectively prevent water leakage. Come with a professional spout design that the water pipe can be easy to remove, which hydration bags can be cleaned, stored, and accessories can also be easily replaced. And the water bag can also be used as a temporary water container separately. It is made of EVA and PVC, it is durable to use. There are two sizes of product for you to choose. Suitable for outdoor cycling, camping, hiking and other activities. Item name: hydration bagsMaterial: PVC,EVACechs: high hardness, corrosion resistance, crack resistanceReminder: it can not be filled with boiling water. Size Details:2L Size: 30cm x 16cm/11.81" x 6.3" (Approx.) 3L Size: 45cm x 16cm/17.72" x 6.3" (Approx.) Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included:1 x Hydration Bags