Since it39s introduction in 2009 the elite corsa bottle has become an icon of cycle racing with over half the world tour pro peloton sporting these distinctive bidons blow off feature greatly reduces the chance of a dropped bottle taking down a rider making this the safest option for racing sportives or group rides 100 biodegradable water bottle as used by many pro teams entire bottle including the cap is compostable and will return to the elements once buried in earth thanks to the