4Ocean Reusable Bottle. Did you know that just one reusable bottle eliminates waste from an average of 345 single-use plastic bottles? Our double-walled, vacuum-insulated, stainless steel reusable bottle can be used for hot or cold beverages, which makes it an easy swap for harmful single-use items like plastic water bottles and styrofoam coffee cups. Now featuring our “One pound at a time” mantra, this bottle is your daily reminder that small acts really do add up! Of course, every bottle purchased funds the removal of one pound of trash from the ocean, rivers, and coastlines.