KUFFIE 30 oz Travel Tumbler, Stainless Steel Vacuum Double Wall Insulated Tumbler Cup with Clear Sliding Lid - No Sweat Travel Mug Bottle for Hot/Ice Cold Coffee, Tea Beverages INNOVATIVE DESIGN - Modern and minimalistic 30 oz Tumbler with superb in and out finishings. Made from 304 stainless steel that will keep it rust free and deliver a clean tasting beverage. Its narrow bottom design was engineered to fit most cup holders. COOL TO THE TOUCH - The tumbler cup stays cool to the touch, allowing you to grab the mug without burning your hands. With double wall insulation technology prevents any temperature transfer to the exterior wall making it sweat free. LID - Closable sliding lid for direct sipping or for a straw, comes with a black silicone o-ring around the base, which helps cover the cup provides secure storage and helps keep your drink insulated longer. Made of durable, clear, safe and stylish plastic that is long lasting, dishwasher safe, and 100% BPA free.This lid will help with accidental tips and spills but not guarantee no leaks if inverted. HEAVY DUTY TUMBLER - Made from premium kitchen grade 18/8 stainless steel and is BPA, Phthalate Free. The bottle is perfect for travel and outdoors to keep your coffee, tea beverages piping hot or ice cold. LIFETIME SATISFACTION GUARANTEE - If at any point you are unhappy with your Kuffie travel tumbler you can return it for a full money back refund. Customer service is our #1 priority.