When sourcing budget-friendly shoes, focus on material specifications and construction methods. For synthetic leather (PU), ensure it has a minimum thickness of 1.2mm to prevent peeling. For athletic shoes, verify the use of MD (Phylon) or EVA midsoles for lightweight cushioning rather than heavy, low-grade PVC. Always request detailed photos of the outsole bonding (gluing) and stitching density, as these are the primary failure points in 'cheap' footwear. Prioritize suppliers who provide SGS or Intertek test reports for slip resistance and sole abrasion.