Originally Posted by cptjeff
Construction method. It's the way the soles are attached to the upper and the insole, and some allow for soles to be replaced more easily then others, and the ones that allow for traditional resoling are somewhat rare in your price range.
Blake/ Rapid has an upper and insole sewn to a midsole that acts as a welt to connect the sole.
As for laceups in tht price...