I ordered these online because I had already owned a pair and have that lasted comfortably over 500 tail miles. They are light, breathable, and require no break in. I normally wear a 9 and ordered a 9. Feet are known to grow while hiking long distance. My feet were still comfortable after hiking 250 during a two week period. They are more like mid-top running shoes than hiking boots. My only issues are that the soles are not as grippy as Vibram and though they allegedly have a Gortex lining, my feet got wet in any amount of water or snow.