Collapsible Reusable BPA-free 16oz Drink Bottle Economical: REFILLABLE with tap or purified water. Convenient: COLLAPSES to a hockey puck shape and easily stores in your purse, carry-on, etc. SAFE: BPA-free and dishwasher-safe - tested for more than 1,000 uses. Perfect for school lunchboxes and airports where security checkpoints restrict liquids! Custom Labeling available for tradeshows and fundraisers!