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?Keen Briggs and Keen Briggs II shoe manufacturers use different materials in the construction of each shoe type. Original Keen Briggs shoes use unsanded, unpolished leather in the construction of the upper part of the shoe, while Keen Briggs II shoes uses nubuck, a sanded, suede like leather material. Additionally, though the soles of both shoes are non marking and slip resistant, only the soles on the Keen Briggs shoes are billed as oil resistant. Further, Keen Briggs II shoes include specially designed memory foam soles that provide greater comfort, while original Keen Briggs shoes use anti odor soles.

Perhaps because of the cost of the materials used in their construction, Keen Briggs shoes tend to cost nearly twice the amount of Keen Briggs II shoes. This likely stems from the former’s use of all leather in the construction of the upper part of the shoe, compared to the latter’s use of cheaper and more readily available nubuck. Additionally, oil resistant rubber tends to be formed from nitrile, a synthetic material that costs more to produce and mold than do non oil resistant synthetic rubbers, such as styrene butadiene or polybutadiene.