Part of our Bold Geometry trend collection this style is defined by angles that create a great tactile and visual experience. Some like it hot & some like it cold, with this patented two-in-one lid you can have both. Double-wall acrylic body with screw-on lid that has a pull up stopper for drinking hot beverages and an integrated pull up straw for cold beverages. BPA free. Exclusive design. US Patent No.: US 8,672,174 B1. 18oz.