This 20oz travel cup is made of high-grade 304 Food Grade Stainless Steel. Double-walled vacuum insulating body and purely stretch-formed liner ensure that the tumbler keeps your on-the-go beverages hot for 6 hours or cold for 24 hours. You can make personalized design according to your own preferences or the person you choose to give gifts. The slender tumbler body design is very suitable for decals and logos. It is very suitable as gift for bridesmaids,bachelor parties and birthday parties. It is very great for your daily commute, as well as the office, the beach, pool, outdoor sporting events, tailgate parties, and camping.