The Elite Fly MTB Bottle 550ml is a super light, rapid hydration bottle. It's fly-specific valve cap protect the drinking valve and keep your contents fresh and secure.  Elite Fly MTB Bottle 550ml  fly-specific valve cap protect the drinking valve and the area around it from contamination by dirt and any less... Savoury substances you may have ridden through the fly was born directly out of years of feedback from the world's fastest riders and the desire to create the ultimate lightweight racing bidon by bringing new materials to bidon construction and pushing mold technology to its very limits, elite have created the lightest ever bidon, half the weight of the all conquering corsa or supercorsa wall thickness has been pared down to the absolute minimum whilst maintaining integrity stripped down, 2-piece cap is light and super-fast to remove with the opening designed to easily take powder scoops simplified, 1-piece valve can be removed for cleaning this is a dedicated racing bidon, for daily use please see our heavier duty models such as the ombra available in 550, 750 and 950 ml versions 100% bpa free