Supposedly a life time promise, but for the money if we receive a year or two out of them we would be happy. Thus far, we like them better than merino as our feet appear to remain drier. Plus they appear to be holding up nicely. ✔️ Durability: While Bombas https://bookmarkstumble.com/story20453584/the-smart-trick-of-dress-socks-near-me-that-no-one-is-discussing