One would think from the celebrity endorsements that and the advertising that one could never have wet feet with Seal Skinz socks. I can say that they are marginally the best product I have used but do not preform really any better than the much cheaper army surplus products around which retail, secondhand, for a third of the price of seal skinz. I have tested two pairs of Seal skinz out on the Peak district and eventually they failed, after three hours. This is a very extreme environment to test as the socks are in continual use and the weather and terrain is incredibly wet. May be the water soaks down my legs into the socks, I don't know. However, I would only use them for a day trip, as they are harder to dry than simple hiking socks. I found putting Vaseline on my feet and using a pain hiking sock kept my feet in better condition than using my seal skinz (I suppose the Vaseline would not do the seal skinz any go). Perhaps if one was using water proof trousers the sock may work; as I wrote my seal skin socks may have become sodden because of water entering from the rim of the sock, but actually I think that the socks become saturated with water-they just can't cope with the continual compression of the feet making contact with the ground while in being ankle deep in water. I would not buy this product again. How I use ordinary walking sock over Vaseline-ed feet to protect the skin from being saturated with water.