I bought these to use in martial arts class - my school has floor mats with texture that always seemed to cut my feet during class.  At first I was worried these socks would wear through quickly.  Well 6 months have passed and they're still working with NO holes. About three months into usage I found the big toe material stretched out while front kicking a bag. So I tossed them in the dryer hoping they would shrink a bit back into shape.  Big mistake - they looked more worn out after one cycle of drying than when I'd just washed and hung to dry for the first three months.  Regardless I decided to keep wearing them to see how long they'd last. They're still going.  Usage wise they're active without shoes every two days (I have two pairs) for 1-2 hours, 6 days a week.