SPR - There's Leather. Then There's SPR.
If you're a farmer, do yourself a favor and wear boots made with SPR leather.
The leather undergoes a special tanning process to make it 3 times stronger and
2 1/2 times more abrasion-resistant than conventional leathers. This offers better
protection against barnyard chemicals. SRP leather resists caustic alkali, sulfuric
acid, calcium hydroxide, potassium phosphate, caustic potash, and other barn-
yard acids. It's also pasture-proof.
SPR is a Georgia BootŪ trade mark.