Insole leather is often cut from the neck section of a hide. (Handmade Shoes For Men page 133-4)
Characteristics
- medium temper
- vegetable tanned
- usually shoulder
- roughly 4-6 millimeters, 10-14 ounces, or 8-12 irons thick
- lighter for dress shoes, thicker for heavy boots
As of February 2024, Baker offered cut insole blanks in 5-7 iron and 8-10 iron thicknesses and insole shoulders in 5-7 iron and 7-9 iron.