The Thermos Leak Proof Travel Mug is designed to fit most automotive car holders or can be clipped to a belt, backpack or bag. This mug can go anywhere-especially ideal for school lunches, business trips, or athletic events. Thermax double wall vacuum insulation for maximum temperature retention. Unbreakable stainless steel interior and exterior Leak-proof sealable top. Ergonomically designed soft touch padded handle .Comfortable silicone rubber grip. Sweat-proof design won't leave water rings. Cool to the touch with hot liquids. Non-slip, scratch resistant base.