I think my high altitude days are over and have deicided to sell my high altitude boots. If you have any plans to head up to 8000 meters, Denali or Antarctica this is the boot for you. The boots same some mild cosmetic wear on the exterior but nothing that effects performance. The soles of the boots have really only touched earth 5 or 6 times for no more than an hour or two. The rest of the time they were in crampons or snow shoes.
I have to stress the warmth these boots provide. At one point in Alaska it was -30 F and my were almost too warm!
Please contact me if you have any questions or would like more photos.