The Vapur Element and the integrated SuperCap were designed from the ground up to meet the performance needs of outdoor enthusiasts everywhere. Flexible design is lighter and easier to hold than rigid bottles – and folds flat when empty to go virtually anywhere. The inner layer is odor, taste, and stain resistant. Made from ultra-durable, FDA-approved, BPA-free polymer. Dishwasher safe. 1 Liter (34oz)