Quench Double Wall Insulated 20oz Travel Tumbler, 1-Pack DOUBLE WALL INSULATION: Double wall insulation keeps your drinks at the right temperature longer. DETACHABLE STRAW: Equipped with detachable straw - great for on the go and built to stay in place. SPILL-PROOF: Equipped with spill-proof, snap fit lid that keeps your clothing and furniture dry. BPA FREE: Made from BPA free material that is safe for all ages. SAVE MONEY AND THE ENVIRONMENT: Reduce waste by simply refilling and reusing every day!