The 20 oz. Perka Clayton Stainless Steel Travel Mug is a great commuter's mug for coffee and tea drinkers alike. It's designed with a comfortable handle for holding and drinking and the curved body shape is compatible with most car cup holders. The mug is made of 18/8 stainless steel and its vacuum insulated double wall construction keeps your cold drink cold for 24 hours and hot drink hot for 12 hours. The mug features a spill-proof slider lid for sipping hot drinks and a food-grade stainless steel straw with curved silicone tip for cold drinks. It has a durable powder coating finish and is FDA compliant and BPA free. A portion of all proceeds is donated to Shelter to Soldier, a non-profit organization that rescues dogs to train as service animals for veterans in need.