The SpeedSok is a perfect fit for your Speedfil Aero Bottle and has been designed to keep your drinks cold on hot days in the saddle. An absolute essential for longer Time Trials and Triathlons when your bottle is exposed to the sun for long periods at a time, the SpeedSok provides an easy solution to the problem of keeping your fluids cold.
• Made of insulating neoprene to keep beverages cool
• Fits over the Speedfill Hydration System reservoir
• Provides an easy solution to maintaining cold fluids
• Durable and long lasting