Hydro Flask - 24 oz Standard Mouth Flex Straw Cap. Color White. Low Stock. $44.95. 4.6 out of 5 starsAdd to favorites. 0 people have favorited thisLow StockBrand NameHydro FlaskProduct Name24 oz Standard Mouth Flex Straw CapColorWhitePrice$44.95Rating5Rated 5 stars out of 5(392)