CamelBak Thrive Chug Accessory Cap Black One Size. Our Thrive Chug Accessory Cap provides high-water flow at a moment's notice so you can hydrate in seconds without spilling a drop. Specifications for CamelBak Thrive Chug Accessory Cap: Manufacturer: CamelBak Color: Black Size: One Size Features of CamelBak Thrive Chug Accessory Cap When you don't have time to slow down and sip throw on the Thrive Chug Accessory Cap and stay hydrated with a single gulp. Package Contents: CamelBak Thrive Chug Accessory Cap Fits all Thrive Chug products. CamelBak 3122001000: Thrive Chug Accessory Cap Black One Size