Positive: Corresponds well to the description, antistatic thanks to a system under the sole, machine washable, removable insole. It holds well on foot, although a feeling of "too big" can be sentir..Je shoes of 39/40, I am well, but I find a little big on top. After it is advised to wear them with socks. So to see, adjustable back strap.
Negative: I find them a bit "heavy" in feet. I work in a retirement home, and wait to see if, after my day, the footwear weight does not happen too felt.
Summary: Really satisfied, excellent product quality, quick delivery and careful!