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YKK vs SBS vs Custom Zippers for Leather Bags: Cost and Failure Risks
In leather bags, the zipper is one of the cheapest parts on the BOM—but it creates some of the most expensive problems. One stuck slider can turn a premium leather bag into a “bad product” in the customer’s mind, even if the leather and stitching are perfect. That’s why professional brands don’t treat zippers as a simple sourcing item. They treat them as a return-rate control point