PERFECT FOR COLD DRINKS: Insulated mug using stainless steel provides an excellent keep-cold effect and without sweating. LEAK PROOF LID: This double-threaded portable insulated cup with a handle is made for lefties and righties,100% leakproof. The cup is dishwasher safe. TUMBLER WITH HANDLE IS VERSATILE: A large durable handle provides a comfortable grip. The cup is also fit for the car cup holder, perfect for travel.