Woot offers JugLug - Pocket Edition - Sleeve/Pouch for Hydro Flask 40 oz. Bottles - Black for $9.99 (orig. $13.99). Free shipping for Prime Members.

Product Description:
The JugLug Sleeve with Pocket works with bottles of similar dimensions to a Klean Kanteen and Hydro Flask.

• Dual-layered with a padded neoprene material inside and a nylon shell to help prevent dents and dings.
• Dual pocket system for phones, keys and accessories.
• Shoulder strap for easy transport and a side handle
• Easy to use
• Imported
• Sleeve/Pouch for Hydro Flask 40 oz. Bottles