Order a pair of Etymotic Er6i's from Amazon (usually the best price at around $75) - the best headphones I've ever had. I bought them to wear under my motorcycle helmet (because they're tiny) and now use them absolutely everywhere. My favourite is on planes - far superior to anything noise canceling as they block all ambient noise and sound great.
Those are awesome in-ear monitors and I have a pair that I use with all my portables. However...you're using these on a motorcycle?!!! What the eff are you thinking?! These things seal out almost all noise. I don't even jog with them because of that. Wearing them on any moving vehicle or even around moving vehicles presents a danger to you and everyone around you. Do the world a favor and get some that let you hear that car honking or tha t18 wheeler coming up behind you.