Show your school spirit with this Go Buffs Colorado University Glitter 20oz Custom Water Bottle Tumbler, handmade by AKA Handcrafted Tumblers. Made from stainless steel, this tumbler features a screw on lid, pop top straw, and handle for easy carrying. However, be cautious not to put hot products into the cup as it is not microwave or dishwasher safe. Hand wash only to keep the glittery design looking its best