2 oz / 0.8 mm Leather (11)
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4 oz / 1.6 mm Leather (17)
5 oz / 2 mm Leather (23)
6 oz / 2.4 mm Leather (17)
7 oz / 2.8 mm Leather (8)
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11 oz and Heavier / 4.4 mm and Up - Thick Leather (3)