Hydro Flask Standard Mouth Flex Straw Cap Lid with Two Replacement Straws NEW The Hydro Flask Standard Mouth Flex Straw Cap Lid with Two Replacement Straws is a sleek and functional addition to your water bottle. Made by the trusted brand Hydro Flask, this cap features a screw-on lid and a flex straw for easy sipping. The black color and cooling theme make it stylish for outdoor activities like camping and hiking. The BPA-free materials and leak-proof design ensure durability and freshness for your drinks. Additionally, the included replacement straws and dishwasher-safe features make it convenient for daily use.