I love mine in both my full face and motocross helmets, both by HJC , I don't use the breath box in either . I wear the full face anytime below 5 deg or so motocross the rest of the time . It can get a little hung up at times on the nose area of the helmet but nothing annoying . Prob only issue is if I am riding when it's really cold it gets crusty frozen on the nose pc and have to kinda hold it in a bit towards my face to get my helmet off .