01Confirm the exact variation
Match the listing model, colour, marked size and quantity to the selected option. Do not convert sizes from a product photo alone; use the seller's current chart and request an insole or outsole measurement when the fit decision depends on it.
02Review both shoes
Compare left and right shape, panels, stitching, sole edges, heel alignment and visible marks. A single flattering angle cannot show pair consistency. Size labels and box labels are useful identity evidence but do not prove fit or authenticity.
03Decide on the shoe box after QC
Retail boxes can add volume and may protect structured footwear, but removing them can reduce chargeable dimensions. Finish the keep-or-return decision first, preserve any packaging needed for a return, and compare packed measurements before choosing.