If you sand the uppers the manufacturer's finish will be removed and you're left with 'raw' leather. Finisher makes the leather less likely to show marks and stains, easier to clean and less absorbent when rain or other liquids are spilled. It's optional. No need to buy it until you see your end result.
If you sand the uppers the manufacturer's finish will be removed and you're left with 'raw' leather. Finisher makes the leather less likely to show marks and stains, easier to clean and less absorbent when rain or other liquids are spilled. It's optional. No need to buy it until you see your end result.