20 oz. Sun Fun Cycle Bottle - BPA Free by Pinnacle Promotions This custom bike water bottle is BPA-free, made in the USA and changes color in the sunlight. The bottle comes in five color choices - frosted which turns to red, frosted which turns to purple, light blue which turns to violet, light green which turns to blue and yellow which turns to green. You also have several color choices for the cap - black, blue, red or white. Available with a 1 or 4-color logo, this custom water bottle would make a great promotional item for a bicycle shop or any other fitness related business.