This XLC WB-K06 bottle is ideal for those who do not want to use a cage to tidy up the look of their bike. The Fidlock system is popular among mountain bike enthusiasts who want a secure bottle mounting system that can keep their drink in place even on rough trails. The bottle comes with a Fidlock adapter and a standard frame adapter. This bottle is food safe and BPA free, with a flip-top that provides a 100% seal even for carbonated liquids. The wide opening ensures easy cleaning and it is dishwasher safe.