A sole structure includes an outsole having an outsole body defining an inner body surface and an outer body surface opposite the inner body surface. The outsole has a plurality of traction elements each extending from the outsole body away from the inner body surface. Each of the traction elements includes a base coupled to the outsole body surface. Each of the traction elements includes a tip spaced apart from the outer body surface and has a pitch defined by a vector. The pitch of each of the plurality of traction elements varies as a function of a distance from the central axis to a respective traction element.

A sole structure includes an outsole having an outsole body defining an inner body surface and an outer body surface opposite the inner body surface. The outsole has a plurality of traction elements each extending from the outsole body away from the inner body surface. Each of the traction elements includes a base coupled to the outsole body surface. Each of the traction elements includes a tip spaced apart from the outer body surface and has a pitch defined by a vector. The pitch of each of the plurality of traction elements varies as a function of a distance from the central axis to a respective traction element.

An article of footwear may include an upper and a sole structure fixedly attached to a bottom portion of the upper. The sole structure may include a sole component including a baseplate having a bottom surface and at least a first ground engaging member extending substantially downward from the bottom surface of the baseplate, the first ground engaging member having a substantially circular cross-sectional shape. In addition, the sole structure may also include a tapered support structure having a substantially pyramidal shape and extending substantially downward from the bottom surface of the baseplate, abutting the first ground engaging member at a side portion, and partially surrounding the first ground engaging member such that a portion of the first ground engaging member is exposed between edges of the tapered support structure. Also, the tapered support structure may extend downward from the baseplate less than the first ground engaging member.

An article of footwear may include an upper and a sole structure fixedly attached to a bottom portion of the upper. The sole structure may include a sole component including a baseplate having a bottom surface and at least a first ground engaging member extending substantially downward from the bottom surface of the baseplate, the first ground engaging member having a substantially circular cross-sectional shape. In addition, the sole structure may also include a tapered support structure having a substantially pyramidal shape and extending substantially downward from the bottom surface of the baseplate, abutting the first ground engaging member at a side portion, and partially surrounding the first ground engaging member such that a portion of the first ground engaging member is exposed between edges of the tapered support structure. Also, the tapered support structure may extend downward from the baseplate less than the first ground engaging member.

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component, wherein the outer perimeter boundary rim is shaped such that the outer perimeter of the ground-engaging component tapers or curves inward moving from a forefoot support area to an arch support area, and wherein a narrowest dimension from a lateral side edge to a medial side edge of the outer perimeter boundary rim (across the open space) is located in a heel support area of the ground-engaging component; and (b) a support structure extending into or at least partially across the open space. The ground-engaging component may have a narrower width dimension in a central heel or rear heel support area than in the arch support area.

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component; and (b) a matrix structure extending at least partially across the open space at least at the forefoot support area to define an open cellular construction with plural open cells in the open space at least at the forefoot support area. A plurality of these open cells of the open cellular construction have openings with curved perimeters and no distinct corners. Additional aspects of this invention relate to ground-engaging components that are very lightweight yet very stiff, particularly in the forefoot support area. Two or more sizes of the ground-engaging components may be provided with substantially constant forefoot stiffness (optionally substantially constant over a size run).

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component; and (b) a matrix structure extending at least partially across the open space at least at the forefoot support area to define an open cellular construction with plural open cells in the open space at least at the forefoot support area. A plurality of these open cells of the open cellular construction have openings with curved perimeters and no distinct corners. Additional aspects of this invention relate to ground-engaging components that are very lightweight yet very stiff, particularly in the forefoot support area. Two or more sizes of the ground-engaging components may be provided with substantially constant forefoot stiffness (optionally substantially constant over a size run).

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component; and (b) a matrix structure extending at least partially across the open space at least at the forefoot support area to define an open cellular construction with plural open cells in the open space at least at the forefoot support area. A plurality of these open cells of the open cellular construction have openings with curved perimeters and no distinct corners. Additional aspects of this invention relate to ground-engaging components that are very lightweight yet very stiff, particularly in the forefoot support area. Two or more sizes of the ground-engaging components may be provided with substantially constant forefoot stiffness (optionally substantially constant over a size run).

Ground-engaging components for articles of footwear include: (a) an outer perimeter boundary rim that at least partially defines an outer perimeter of the ground-engaging component, wherein the outer perimeter boundary rim defines an open space at least at a forefoot support area of the ground-engaging component; and (b) a matrix structure extending at least partially across the open space at least at the forefoot support area to define an open cellular construction with plural open cells in the open space at least at the forefoot support area. A plurality of these open cells of the open cellular construction have openings with curved perimeters and no distinct corners. Additional aspects of this invention relate to ground-engaging components that are very lightweight yet very stiff, particularly in the forefoot support area. Two or more sizes of the ground-engaging components may be provided with substantially constant forefoot stiffness (optionally substantially constant over a size run).

Firm feet is a shoe like device created by Sukari Barnes to aid the modern-day exerciser. 53% of adults 18 and over have met the physical activity guidelines for aerobic physical activity. (NationalCenter for Health Statistics. Centers for Disease Control, 2017.). Adult Americans are becoming increasingly concerned about their health, physical fitness, and appearance. Firm feet was created to assist a person who loves to do sit ups daily. It is a device that controls body placement by sucking your feet to the floor while performing sit ups. The shoe like device fits snuggly and completely over both feet with the ability to adjust to the person's size. A strap is placed around the ankles in the back of the foot and suction cups on the bottom of the device will suction to the floor securing both feet firmly to the floor. Firm feet is an ideal invention for people performing push-ups or whatever exercises that require straight up body positioning with their feet on the floor. Once exercising is complete, a button is pushed on the outer side of each shoe like device which will release the suction and straps on the back of the foot.