Seam Stitching Patterns

The raised seam is formed by 6 rows of hand-stitching (Dukes, SG) or machine pressing (Kookaburra).

Swing bowling grew with the introduction of the seamed leather ball in the 19th century; the saliva ban (ICC, 2020, permanent 2022) forced a shift to sweat-only shine and wobble-seam variations.

Hand-stitched seams stay proud for 60+ overs aiding swing; machine seams flatten by 25 overs.