GREAT FOR HOT AND COLD: The double-wall construction ensures both hot or cold drinks can be kept at optimum temperature for longer. It can keep your drinks cold for 24+ hours or hot for 8 hours. ONE-HANDED DRINKING: Threadless, transparent Tritan lid easily slides open and closed for a one handed operation and helps to prevent against spills. Features a convenient drinking hole for sipping for beverage or placement for your straw. DURABLE CONSTRUCTION: Made of high quality food grade 18/8 stainless steel, double wall vacuum-sealed construction which helps to prevent condensation from foaming on the outside of the bottle. EASY TO CLEAN: Designed for easy and convenient cleaning. The Tritan lid separates into two parts making it super easy to clean. Hand Wash Recommended for body and lid CAR CUP FRIENDLY: The tumbler stands 8.58" tall and has a diameter of 3.82" which makes it size perfectly to fit in standard sized cup holders. WORRY-LESS DRINKING: This tumbler is Food and Lead Safety tested plus it’s PVC, BPA, latex and without phthalate; 20 fluid ounce capacity.