Simms Beverage Holster - Sparkling water or frosty friend? The Simms Beverage Holster's happy to oblige. It integrates with waders and packs seamlessly for sips on the go and when it's time to settle in, use it as a standalone koozie for cool containment. 100% neoprene construction keeps beverages cold for the long haul Two webbing loops to accommodate attachment to 38mm or 2in wide wading belts Adjustable webbing strap allows for around-the-neck carry