I was so excited when I put them on and my feet didn't itch like crazy (from other non-bamboo socks, Hanes). The itch stopped with these bamboo socks. They are very soft and comfortable. I'm afraid that after the first wash the threads started to unravel. And they shrink a lot after the first wash. But the stretch still fits my shoe size 10.5 US. I was so delighted with my first order that I ordered a second one within a week. Now I'm worried they won't last long because the threads are unraveling. I have included photos of the threads being untied. I can't give more than 2 stars because the threads dissolved after the first wash. At the moment I am not sure if I will order again from this seller.