My husband wore for a couple weeks and the irregularities inside the boots made him get a knee injury which the pressure points caused him to developed water on his left knee. The doctor told him to stop wearing them and took nearly 3?weeks of not using boots for him to feel better. Not comfortable at all but being it was a gift he didn't want to complain being they were used we figured we couldn't return them so we disposed of them and now shopping for another pair.