Ever since the grey Yeezy Boost 750's have hit the market, replica manufacturers have been continuously trying to make the perfect replica. Due to this, there is always a "new"/"fixed" replica. Currently, the unauthorized replica used for this comparison is the best and closest to retail, so this comparison will help you spot even the best fake on the market.
Real via @Jcollector23
Part 1. Green shows stitching and cut of the panel on the fakes is off on the fakes. Red area shows the 2 panels are distanced alot further than they are on the real pair.
Part 2. The curve and shape of that bump panel is completely off on the fakes.
Part 3. The real pair features a steep slope toe box, the fakes has a slight bump.
Part 4. The stitch line that goes to the top of the ankle collar, the placement is off on the fakes.
Part 5. The adidas logo is backwards on the flip side of the insole of the right foot.
Part 6. The size and placement of the ventilation holes is incorrect on the fakes.
Part 7. The fakes feature alot thinner insole, therefore on certain parts of the insole you can see indentations of the reverse side. On the real pair, the insole shows no signs of indentations because the insole is thicker.
Part 8. The grooves on the midsole are aligned and angled differently on the fakes.