I'm a retired veteran, on my feet all day. I tried this short boot/shoes with zipper sides in black. After awhile the upper started to move outward from the soles. Although no rips of the shoes the rippers tab's broke off so I was key-rings. The shoes are true to size so don't buy them bigger or smaller.
Sorry to write, I don't recommend this product for the price is high and for the quality of time and service I used.
I'm going to buy regular shoes, for I couldn't find benefits in these shoe product.