Limited edition. Co-branded by our friends at GOBIE H2O, $5 from this purchase will go directly to our newest charity project. San Diego NGO, SurfAid, will be the benefitting and executing a water system for communities in the Mentawai islands of Indonesia. With Nika’s model, just $20 can bring one individual clean water for life! Each four of these purchased, does just that. The filtered water bottle is designed to remove the unpleasant chlorine taste and odors found in municipal tap-water. GOBIE's Flex-Flo™ Technology eliminates the need for a straw system, providing the most user-friendly experience on the market! Plus, each bottle comes with a daily-use filter already installed.