The Ello Hammertime 18 oz. stainless steel travel mug will bring a touch of elegance to your morning commute. Both fashionable and functional, the new BPA-free 100% leak-proof slider lid makes it ideal for on-the-go use. Vacuum insulation keeps beverages hot for up to 5 hours and cold for up to 10. The convenient car cup friendly size will fit wherever you need it. For easy cleaning, this travel mug is top rack dishwasher safe. Certified BPA, Phthalates and PVC free. Ello is dedicated to creating stylish drinkware that provide our customers with the perfect pick-me-up to brighten up their day.