Fits all 18 oz. Wide Mouth Hydro Flask bottles (Campmor Item # 80477).
Easy to attach.
Adds insulation to keep your liquids at optimal temperature.
Imported from USA
Hydro Flask Wide Mouth Flat Cap is designed for the rigors of the outdoors as well as everyday use, with insulation to
aid in keeping your bottle's contents cold or hot and at the optimal temperature.