Supposedly a life span promise, but for the money if we have a 12 months or two out of them we would be happy. Thus far, we like them a lot better than merino as our feet look to remain drier. Plus they seem to be holding up well. When https://cool-new-dog-toys17161.myparisblog.com/33010394/new-step-by-step-map-for-nike-socks-for-cheap