The leather is cut into the shape of a strap and then glued. The open edges are then filled and coloured with dye. Many different straps are possible.

In the production of a remborde or full-bugg strap, the upper leather is folded under a breathable, natural cotton fleece and then glued in place. The folded upper layer is glued to the lining leather as far down as the fabric fibres to prevent penetration by bacteria. Finally, all the layers are stitched together. The RIOS1931 full-bugg strap is softer, similar to a »Goodyear welted« or »frame-stitched« shoe, but at the same time more stable and long lasting.

The high-end »Art Manuel« technique used for the RIOS1931 full-bugg strap is similar to a »Goodyear welted« or »frame-stitched« shoe, with an additional leather sheath. The strap is then embossed; the edges are smoothed with heat, sanded down and painted 5 times with edge dye. The loops are hand stitched. Many of the »Art Manuel« models also have true saddle stitching (hand seam).