What quality standards should I expect from a sports hoodie manufacturer?

What quality standards should I expect from a sports hoodie manufacturer?

Reliable manufacturers follow international quality standards:
• Stitching durability (flatlock, overlock seams)
• Fabric softness, elasticity, and shrink resistance
• Colorfastness after washing
• Sweat-wicking and breathable performance
Request samples or quality inspection reports before bulk production.