Abstract: A shoe including a slip resistant sole having a bottom face, wherein the sole includes a plurality of arcuate-shaped lugs having non-linear edges, each lug including an inner arc and an outer arc, wherein the outer arc is a convex side and the inner arc is a concave side shorter than the convex side, and each lug includes a groove transecting the lug, wherein the lugs are arranged into a pinwheel pattern group that includes three of the lugs, wherein the bottom face of the sole includes a plurality of the pinwheel pattern groups, and wherein each of the pinwheel pattern groups is radially symmetrical and bilaterally asymmetrical.

Abstract: A slip resistant sole having a recurring pinwheel shaped tread pattern that provides improved slip resistance.

Abstract: A shoe is designed to enable unhindered natural foot motion between the foot and the ground. The shoe is constructed with a cupped heel, a contoured arch, a radiused forepart and neutral heel/forefoot position to create a foot bed that anatomically cradles a wearer's foot. A soft, flexible strobel stitched insole is added, which utilizes encapsulated high resiliency foam. The outsole is sculpted to have rounded natural edges and an anatomically correct flex location toward the forefoot of the shoe where softer, more flexible materials are used. The outsole is further designed with harder, protective materials strategically placed in high ground-contact areas to deliver protection and support. An optional midfoot support element may be positioned between the insole and outsole to control torsional stiffness. Upper materials are selected to minimize restriction of movement and promote breathability.