They are tough and he doesnt qear holes in the toes. I have tried a few different earbuds and none seem to fit right. I had to tighten up the screws quite a bit to get it to hold that weight reliably, but only hand-tightening. The first few times My feet got wet, the dark dye stained the bottom of my feet. I found another in my parts bin but it?s not a perfect fit for the Garmin. This has disappointed me, as I do love everything about your slippers. Easy to keep clean with a wipe over, with strong sturdy soles. Also, last night the left earbud of my b&w p13s decided to fail on me. This is a second purchase. It still can connect several devices one at time.