Andrea-12342 years ago-101Do they hold up well during sport?Show in original language (German)ursbasler22 years ago • purchased this product000purchased this productNo problem for me. You just have to use the right rubber attachments.Show in original language (German)CommentPistolero512 years ago • purchased this product000purchased this productAbsolutely no problem when jogging on the treadmill (60-90 minutes). You just have to try out the right size for the best fit. I am satisfied.Show in original language (German)Commentphilippo872 years ago • purchased this product000purchased this productI only tried them when cycling, they were not ideal for meShow in original language (German)Comment