I was skeptical at first, but I had my safety department inspect it before I could wear it on the production floor.  It passed.  These are WAY lighter than my Georgia logger boots & feel more like wearing a pair of tennis shoes. My Georgia Logger Boots were size 10.5, my Bates tactical steel toe boots were size 10, and my Merrel shoes were size 10.  These fit perfectly, are comfortable in a full 8 hour day where I am on my feet, but just an fyi, the bottom tongue seam ( just above the bottom speed lace hooks) at first seems sharp, but if you wear double socks for like the first 2 days, they'll get soft & you can go to wearing just the normal single pair socks...