These boots are very comfortable right out of the box. They only took approximately 2 miles to break in. They almost seem to get more comfortable after the break in. They have a medium to slightly stiff flex for ascending steep hills which is nice. They have a better sole for all around traction than the original. The lace to toe and 3F system work great for keeping your toes and heel locked in. Wish the tongue was cut a little lower because it sticks above the top by about 1.5 inches (3.8cm) which I think looks a little goofy to me if you were to wear shorts with them. Tested my pair during a slight rain and hiked through some soaking wet grass and brush and they only got slightly damp on the inside, so a good boot oil would stop that. Overall, I'm very happy with them and they are holding up great. This is my 3rd pair of Salewa boots and I've never had a blister or hot spot with any of their boots. Thank you Salewa!