I decided to give Darn Tough's quarter mesh socks (68% Merino Wool, 28% Nylon, 4% Lycra Spandex) a try.
http://www.darntough.com/run-bike-1493.html
Before I had been purchasing/using the equivalent type of sock made by Patagonia (also a merino wool blend). I wasn't happy with the Patagonia sock because after only a few weeks of wear, the heel fabric (the part where my Achilles tendon is) would become threadbare (the ball of the foot area would do the same a few weeks after that). I've actually taken a few pairs back to the Patagonia shop, which they gracefully exchanged for me. But I cannot go on doing that for eternity. Hence my decision to explore other brands.
And now on to my question. Do Darn Tough socks stretch out over time/extended use? The reason I ask is that the pair I purchased was somewhat larger in size to the Patagonia ones I usually purchase. The Patagonia ones were pretty stretchy, so when you compare both brands of socks of the same size side-by-side the difference is fairly pronounced. The Darn Tough socks fit quite well at the moment, so I am wondering what the future holds.
Oh, and how are they on the heel/ball of the foot wear? So far, it's been a couple of weeks, and mine are doing great.
Thanks…
Edit: For those of you who having long-lived Darn Tough socks, could you please state the type/material composition of the sock you are using? Thx.

