I currently use Bose QC15 when I travel or commute in trains, trams or busses. I also use them at work as I work in an open plan type environment and they even bombard us with pink noise all day to cut down on the overall noise (and I can hear that damn hiss...). They work great and sound very good. Not serious highend sound, but very good I think. The downside for me is the relatively large size and that the ears tend to get to feel hot after about an hour.
I also have the Klipsch IE X10i, that I use as well on the road. They sound better than the Bose. They also cut out the noise very nicely. Small packing size. The downside for me is that even with the largest adaptors the do not sit tight enough and I have to push them back into the ear canal every five minutes.
When I go runing I do not listen to music. Gotta feel and hear that heart and the lungs pumpin' and the birds tweeting
Michael
Nelson Pass F5 Turbo V2, Quickie (mod), S.E.X. 2.1, Tubes4hifi SP14, Dynaco VTA ST 70, Tubelab SSE, Vroemen Diva Superiore ER4, Jordan JX92S VTL, 47 labs 0647 CD, Aqvox DAC, Rowen Absolute pre / psu / power amps, BG Neo3 / Betsy / Eminence A15 open baffles