Howard Leight Smartfit earplugs
These can't be beat for motorcycle riding. Probably tried 90% of the reusable plugs on the market and keep coming back to these. There are a couple with a higher NRR but I found other issues like comfort and ease of removal to be bothersome. The Howard Leight's are durable, washable, easily inserted and removed and keep the wind roar to a comfortable level.