I no longer make stays in this exact style, with separate tabs.
Fabric: Two core layers of cotton duck, cover and lining 100% cotton denim
Boning: 1/2″ flat spring steel bones fanned in front panels, and 2 1/4″ flat bones per tab
Piecing: Three or Four panels total
These stays were made for historic reenactment, using modern materials and techniques. My plain stays are now also made with hemp or linen material, instead of cotton, using a different assembly technique that is more efficient and produces a higher quality garment.
Some of the stays shown are back lacing only, while others have lacing in the front and back.