NOBODY I know offer a lifetime warranty on gloves! Sorry, not happening.
NEVER buy the most expensive glove money can buy!
I did that because I was impulsive. My favorite leather gloves have a Thinsulate or 100% polyester lining Made in the Philippines (they're made anywhere in the world), but thinsulate lining or 100% polyester is so much better than cashmere (those are so thin rips in just a week or two). I've had my leather gloves for years, and they kept my fingers warm every winter.
TIPS:
I've never really owned wool gloves, because of moth problems I've had with my wool coats. I now keep my wool beret, hats, inside a cedar chest or hat boxes. I own several hats!
When buying gloves, it's not one size fits all, like buying jackets, even a size medium, some fingers are longer, and some fit tighter. I will have to try on each glove one by one by one, to find JUST the perfect pair, and they just can't be bought online UNLESS they offer FREE shipping, FREE return.
I found a leather store that was closing, and they were selling $7 or buy 2 get 1 free, in any colors, and I was there for a long time, trying on gloves after gloves! Many of them were Made in China, but sewing is never perfect, the reason why gloves are never the same fit and the reason why THEY SHOULD each be tested.
Helps, if you have them in every color, but mine was medium size. My Ralph Lauren leather gloves lasted 13 years. I have gloves for each jacket/coat pockets and wear them fall, winter & spring.
Source:
http://en.wikipedia.org/wiki/Thinsulate