The CamelBak Antidote Insulted Director is a bendable, stays where you put it tube for totally hands free hydration. Position tube for convenient, hands free drinkingno need to reach for a drink. Antidote insulated tube keeps water cool. Clicks onto any CamelBak reservoir with Quick Link system. Works with OMEGA reservoir with purchase of Quick Link Conversion Kit search Item 4466503 to view the Quick Link Conversion Kit.