I've been been use foam ear plugs for 15 years, I can see how they can be uncomfortable with narrow ear canals, hard to insert too. I just got a new batch of 50 from CVS, -32db rating, they're quieter than the last ones I had.
Many years ago I had a pair of those custom made for me at a motorcycle show. The ones that don't go into the canal, about $70. They made the ear mold at the show, created the plugs at their shop, and sent them to me. They were crap, I couldn't hear anyone speaking, but wind noise came through loud and clear. I've also tried swimmers plugs, they're waxy and don't go into the canal, didn't work for me.
2009 Wee Strom ABS (current)
1987 Harley FXR Low Rider Sport (current - with 206K miles)
2009 Aprilia Mana 850, 2006 SV650, 1984 Yamaha Virago 1000 (all sold)
Silver Strom Club Member #11
Wee Farkles: Russell Day Long Seat, Madstad with Moose Adventure Shield +4'', SWMotech Centerstand, 1'' up & back bar risers, Givi XS308 Tankbag, Aprilia mirrors, Framesliders, Fenda Extenda, Elka Shock.