I have three "lifetime" sporrans. One is made from deer hide and has a brass cantle. One is a full mask muskrat sporran, and the other is seal skin with a silver cantle. The newest (the seal skin) was a gift in 1969 from a girlfriend. I guess approaching a half century of regular use qualifies these as "life time" sporrans. I think the key to having a lifetime sporran is to buy the best you can possibly afford and take care of it.