Kooyi Vacuum Insulated Stainless Steel Travel Coffee Mug / Water Bottle, One-handed Open and Drink (8.5oz) (Black) Double Wall Vacuum Insulated Water Bottle, 250ML, 8.5oz, keeping liquids cold or hot up to 12 hours Premium 304 stainless steel interior and 201 exterior, BPA free; Durable and Healthy, Hygienic, No metallic odor Easy-Flip Press Button Lid with built-in humanized anti-hot sipping design, made in 100% Food Grade PP material 100% GUARANTEE LEAK PROOF. Safty Locking Mechanism besides the flip press button to lock the flip button avoiding it opened by accident in your bag. One-handed opening and drinking, easy to use and carry; Small size type, much easy to carry anywhere; It fits all auto cup holders. Perfect for traveling or at the office, gym, school, camping, hiking