Bag Rivets: When They Hold and When They Fail

Bag rivets reinforce stress points like handle anchors and D-ring bases where stitching alone fails. Learn the types to specify for a factory.

Molded EVA Shells: When a Bag Needs Shape Instead of Stitching

A molded EVA shell gives a bag shape that stitching cannot. How density, hardness, tooling and draft angle shape cost and protection.

Welded seams, or sewn and taped? How each method seals a bag, which fabrics allow welding, and why the closure often leaks before the seam does.