I have a pair of Danners frontier boots. They are pretty old. Went to put them on and saw the soles were separating from boot. I sent then back to be recrafted ( since that boot can be). Not cheap at 130 for what I elected to have done. Boots have been returned and I am very pleased with quality of work. Probably a better sole than original. Also excellent communication and customer service from Danner during the time. Just letting you know my own experience.