Black HammerComposite Safety Boots for Men Non-Metallic Lightweight Durable Work Shoes Non-Slip Anti-Static Smooth Leather 8844

How long will they last a person drags their feet.

Will they set off metal detectors i work in an area where they are used only if i have boots with metal in i have to keep taking them off every time i

Why don't the inner soles last very long

Are these true to size? I am an 8.5 , do I go for an 8 or a 9