Something has changed with Balega socks within the last year. My most recent 6 orders, have all resulted in socks that are stuck at the back of my drawer, lost from the rotation for reasons, such as the elastic around the ankle is so loose, that the sock heel slip under my shoe line while hiking, running and walking. Another several pairs have stretched beyond the medium size I have worn for years. The very thin no show socks, have gotten holes in the ball of the foot in less than 6 months. Thinking about switching to bombas. For reference I wear a size 9.5 AAA narrow. I have tried the medium and the large. The several pairs I have from 5 years ago are still all in good condition. Such a bummer!