Ocathnon Insulated Travel Coffee Mug Portable Stainless Steel 350ml/500ml Thermos Water Bottle BPA-Free | Lid Lock Prevents Leaks & Spills (Gold, 350 ML) Retains Temperature For Up To 8 Hours: Vacuum-seal technology and double-wall construction ensure superior insulation for hot or cold liquids. Truly Leakproof: Will not leak! The only mug with a vertical lid lock. Ensures no accidental spills and allows for convenient 1-hand operation. Safe & Nontoxic: BPA-free lid and food-grade stainless steel mean there are no chemicals that can leech into contents. Drink with peace of mind. Slim & Sleek: Fits most car cup holders (2.6" D, 7.68" H), with a fingerprint-proof finish. Comes in purple, white, champagne, and dark grey. 1-Year Warranty: Buy without risk! If you have any issues with our travel mug within 12 months, we'll replace it at no cost.