The exclusive 16 oz Grip N Go tumbler is constructed out of 201 stainless steel and polypropylene with double wall insulation. Features a diamond patterned rubber grip and a drink-thru lid. Perfect for promoting cafes, coffee shops, and restaurants. Makes a great giveaway at trade shows and conventions, too! The Grip N Go tumbler may be customized with your company name and logo or purchased without imprint. BPA free! Matching colored rubber non skid bottom. Non-microwavable. Hand wash only. Additional Information US Patents D, 662, 362 S, D, 664, 812 S. Other patents pending.