Koss’s CC_01 earbuds replace those easily-lost foam or rubber tips with an expandable and contractable system. Just turn the metal screw top on the back of the ‘buds, and the tips will adjust to fit.

I have a specific distaste for earbuds going back years. I prefer big over-the-ear “leave me alone” headphones. But those aren’t really practical for working out. The rebranded and redesigned Beats ...