Triple Dot...
If you have an Apple store close by, by all means go there and maybe they'll let you try them on. If not, they have always been good at taking things back within 30 days if you don't like them.
They don't come with different sized 'pads' for the buds like many others out there. They ARE comfortable...much more than the originals that were downright painful to me in about 30 minutes.
Your ear canal may be a tad wider than mine and these buds may fit you just fine. I see guys out on the paths and trails (biking) with them in all the time and they don't seem to have a problem with them.
I like the ones recommended above, the Marley ones, but they are outside my budget. And when I ride the streets around here north of ATL, I never listen to anything but the traffic. Listening to music with unconscious idiots speeding around you in 3 ton vehicles putting on makeup, texting, reading, eating, reloading the bong...you are nuts to listen to anything but what's going on around you, IMHO..
Cheers!
Pat