Hydro Flask - Wide Mouth Flex Straw Cap. Color Black. Low Stock. On sale for $13.46. MSRP $14.95.. 4.6 out of 5 stars1 left in stockBrand NameHydro FlaskProduct NameWide Mouth Flex Straw CapColorBlackPrice$13.46MSRP: $14.95Rating5Rated 5 stars out of 5(14)