Contigo Autoseal Melrose Double Wall Insulated Water Bottle, 18 oz, Cobalt The Contigo Melrose Water Bottle is made out of FDA-approved, BPA-free Triton, which provides high impact resistance and won't stain or retain odors Drinking made easy; Press to sip; Release to seal; AUTOSEAL automatically seals between drinks to eliminate spills and leaks Easy, one-handed use with no caps to remove or spouts to open; This water bottle is made for on-the-go drinking Double wall construction reduces sweating Top-rack dishwasher safe Lifetime Warranty