Design for Living Stackable Tritan Water Bottle, 32 Ounce, Green Bottles stack neatly in fridge or cabinet. Ideal for everyday use with water or iced beverages in the office, outdoors, in the gym, or at home. Patented lid design securely locks the cap in place creating a water and air-tight seal for no leaks. Easy twist-on, twist-off cap with no exposed threads makes it comfortable to drink from. Made from BPA-free material.