The BearCozy is a holster for your bear spray can that fits directly into the water bottle carrier on your mountain bike. No more throwing the bear spray into your backpack - where it is pretty much useless in the case a bear charges you! The two piece top allows you to secure the bear spray in place, while leaving the nozzle and trigger open for rapid response. For use with 225-230g cans of bear spray only (bear spray not included with purchase)