When evaluating mens jeans, focus on fabric weight (measured in ounces), composition, and construction techniques. For premium markets, look for 12oz to 14oz denim for durability. Ensure the material composition includes a blend of 98% cotton and 2% elastane (Spandex) if stretch is required for comfort. Pay close attention to seam strength, specifically triple-needle stitching on the inseam and rise, and verify the use of high-quality YKK zippers or reinforced button flies to prevent hardware failure.