What are the best work boots for standing on concrete all day?

Fit and cushioning come first: a supportive footbed, room in the toe box and a sole that flexes where your foot does. Makers market wedge soles for hard, flat floors, and the right socks help. If you swap in an after-market footbed, check what the maker says first, because the standard’s catalog entry notes that after-market parts can invalidate the marking. For pain that does not go away, see a professional; this is general information, not medical advice.