My husband recently fractured his ankle and needed long socks to wear under a massive cast so I bought these hoping they would be long enough and also comfortable would be. These are really well made socks, they are very thick and also quite long compared to other tube socks or boots, they reach to the knee. The issue we had was that these are very tight combat socks comparable to compression socks so he ended up not being able to wear them with the cast as his foot and ankle were still swollen. However, he will wear them once the swelling has subsided and he puts on his riding boots.