Hood River Stainless Steel Cap Lid Top with Flip Up Carry Handle for Hydro Flask Type Wide Mouth Bottles SNUG - Makes a Tight, Waterproof Seal on Most 18 oz, 32 oz, 40 oz and 64 oz. Wide-Mouth Insulated Flasks such as Hydro Flask and Frigid Flask PREMIUM - 18/8 Food Grade Stainless Steel Construction HANDY - Cap and Handle in one. Makes Carrying Your Flask a Pleasure. Or Hook it to a Carabiner and off you go. SO COOL - Makes Your Flask More COOL