Stainless Steel Material:Crafted from 304 stainless steel, this tumbler guarantees durability and long-lasting use. Its robust construction ensures it remains in pristine condition for years. Insulation Performance:With an insulation performance that lasts up to 6 hours, this tumbler keeps your beverages hot or cold for extended periods, suitable for on-the-go use. Versatile Gift Option:This tumbler double-ups as a great advertising gift or a business present. Its sleek design and high utility make it a practical choice for meetings and conferences. Ice Bag Functionality:The added ice bag functionality ensures your beverages stay fresh and cold during hot summer months, enhancing its practicality. 20oz and 30oz Size Options:Available in 20oz and 30oz sizes. Whether you need a smaller capacity for your daily commute or a larger one for longer trips, this tumbler has you covered.