Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Standard Flex Straw Cap by Hydro Flask Original Price $14.95 Current Price $12.95 Black / One Size - $12.95 Black Color Chevron down icon One Size Size Chevron down icon Availability: Translation missing: en.general.icons.icon_check_circle icon 11 in stock, ready to be shipped 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Looking for Local Pick-up? Choose a store below. Product Locator by Locally Notify me when back in stock Email address Email me when available Hydration on the go just got easier with our leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.