When running (jogging or sprinting) they stay in place even without a belt. I run on tracks, roads and trails and they don't move when I run.
Polarized Aviator Sunglasses For Men With Military Style By SUNGAIT
36 Review
Oakley Flak Jacket 13-727 with Polarized Lenses
36 Review
Enhance Your Eyewear: Mryok Polarized Replacement Lenses Tempo - Find the Perfect Fit!
34 Review
Oakley Flak Jacket XLJ Sunglass Replacement Lenses & Sock Kit By BlazerBuck
39 Review