ZZ_UPennHi @ZZ_UPenn, yes it is lifetime, there are no catches, no hassles. A little more info from our site, "You can be confident that you are going to love these hiking socks as much as we do. Or your money back. That's our guarantee. If they don't live up to the abuse of the wild. Your money back. If there are any defects. Your money back. If a bear eats them whole. Well. Consider yourself lucky. But we think you get the picture."