Patch 4S a Leather Patch by Leather Doctor is a leather sub-patch for rip or tear repairs with a thickness of only 0.4mm which becomes less noticeable at the edges.
Patch 4S is a 4" x 6" chrome tanned bluish grey color full-grain leather with smooth grain on one side and suede on the other.
How to Use Patch 4S?
In a surface grain repair, the bonding is done from the suede side of the patch to the suede side of the damaged leather for extra strength option. Always use in conjunction with leather Bond 3D.