You are in the handlebar and stem protectors for Trial and Biketrial bicycles.
Handlebar protector from Jitsie brand. Very useful to soften possible hits on your chest in some riding situations. Very easy to place on the handlebar thanks to a pair of velcro straps. Made in nylon fabric with internal part in high density foam. Compatible with all stems in the market. 6 grams of weight.
Brand: JITSIE