Alpine Moto Safes. Come with tunable pieces. Work well for me with half helmet.

 

ear plugs and one of those,choose your style,pull over the head type masks.i have about 5 different ones with all different designs.keeps out 90 % wind noise and lets me hear my pipes sing.also doesnt hurt when a big bug bounces off your face as well.and with the right sunglasses,no wind gets in my eyes as well.perfect combo imo for a half helmet.