Camelbak hands free adapter blue description converts all sizes of the camelbak eddy bottles into a hands free hydration system attaches pureflow tm tube to the bottle perfect for using your bottle when its stowed in your pack features multi layered pure flow tm drink tube keeps water tasting fresh tube length 28 in 711 mm hands free adapter comes with ergo hydrolock tm shut off valve lets you control liquid flow turn on when you need it off when you dont 90 degre