Contigo has a wide range of coffee mugs. They come in all shapes and sizes, are equipped with patented AUTOSEAL® or SNAPSEALTM technology. The Contigo thermal range stands for easy-to-clean products, with 1 handed operation. They are made out of Stainless steel and have vacuum insulated technology, keeping drinks hot up to 5 hours and cold up to 18 hours. The Autoseal coffee mugs are 100% spill and leak proof!