Great Sound for a Comfortable "Open" Design
I use earbuds while cycling and absolutely need an "open" design (i.e., the silicone tips do not insert into and create a seal within the ear canal, which means that you can hear the car that may be about to hit you). There aren't many designs like this out there but vs. the others (i.e., Yurbuds, some Sennheiser models, the discontinued Monster iSport Strive, and some others) these Bose buds both sound the best and are the most comfortable (by quite a margin). As long as there isn't too much noise (or wind) around you Bose has sculpted a sound which compensates well for the open design: they produce bass that's solid but not bloated, articulate mids, and crisp/clear highs.
Negatives are that they sound/fit/function no better than my previous Bose SIE2i's (you'd think that Bose would've found something in the last five years to improve this design), the cable keeps getting shorter with each new iteration of a Bose "sport" model (I route the cable under my jersey and would be happier if the ~44" cable were closer to 48"), and quality is a bit suspect given the cost of these (the 3-button controller on my SIE2i's died after 3yrs. and there's lot's of online comments about how easily these new Soundsports can break). OTOH - I do like the change to a straight (vs. sort-of angled) plug, but that's a subjective issue.
Verified purchase: YesCondition: Pre-owned