Juglug, LLC is not affiliated with Hydro Flask or any other flask/bottle manufacturer. Juglug products are intended for use with multiple bottle manufacturers. All trademarks remain the property of their respective owners. Use of them does not imply any affiliation with or endorsement of JugLug, LLC by Hydro Flask or any other trademark holders. These trademark holders do not endorse Juglug, LLC's products and Juglug, LLC does not endorse the use of any other product.