When evaluating Vietnam-made footwear, focus on material quality and construction methods. For athletic shoes, ensure the use of High-Elasticity EVA or TPU midsoles for cushioning and breathable fly-knit or mesh uppers. For leather footwear, verify the use of Full-Grain or Top-Grain leather rather than bonded leather. Pay close attention to the outsole rubber content, where a natural rubber ratio of 30-40% is standard for high-quality slip resistance and durability. Additionally, check for Cold-Bonding or Goodyear Welt construction depending on the shoe type to ensure long-term structural integrity.