The 16 fl. oz. Hydro Flask Coffee features a leakproof Flex Sip lid that lets you enjoy your favorite brew or other beverage worry-free, making your daily routine just a little smoother. Never used, brand new in excellent condition! Flex Sip lid pairs a leakproof sipping lid with a flexible strap for easy transport TempShield™ double-wall vacuum insulation keeps your drink hot or cold for hours 18/8 stainless-steel construction with proprietary powder coating is BPA-free Fits most backpacks and car cup holders