When evaluating jeanswear, focus on fabric weight (measured in ounces), where 12-14 oz is standard for durable denim. Ensure the material composition meets your needs, such as 100% cotton for authentic feel or 98% cotton and 2% elastane for stretch comfort. Pay close attention to seam construction, specifically flat-felled seams and chain stitching at the hem, which prevent unraveling and ensure longevity. Additionally, verify the quality of hardware, such as YKK zippers and reinforced copper rivets at stress points.