ChiTronic Insulated Travel Coffee flask, Stainless Steel (16 oz), BPA-Free vacuum flask, Lid Lock Prevents Leaks & Spills (Pink) 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, 9" H), with a fingerprint-proof finish. Comes in gold, white, blue, and pink.