was searching for one of these for a while was let down elsewhere .... I wear a medium in every other helmet , went for medium fits perfect , looks the part yes it’s a novelty lid but a gentle cruise I couldn’t imagine it being massively less effective than a budget open face found it to be better at some speeds than my open face which lifts horrendously . If your after one of these for posing or those gentle rides don’t hesitate , you can buy really cheap ones on eBay and wait six months for it to turn up with corona virus , or buy one from fat skeleton and have it the next day in a decent box with a lid bag too ! Highly recommend both the helmet and fat skeleton .