Stain-free, clean tasting, 100% borosilicate glass tumbler with real wood friction-fit lid, NO plastic odors or taste by a natural bamboo straw.This glass tumbler is designed for enjoying your favorite beverages on-the-go. Whether you drink smoothies, iced tea, juices, or water, everything tastes better in glassware! Colorful silicone sleeves prove a no-slip grip and make it easy for kids and guests to identify their own glasses Protective silicone sleeves make the glass perfect for outdoor use as it will not sweat in warm weather.All parts BPA/BPS free and top rack dishwasher-safe. Do not microwave. Do not freeze.