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Foot-receiving devices, such as articles of footwear (e.g., athletic footwear, etc.), include a foot-covering member (such as an upper member) and a foot-supporting member (such as a sole member, optionally including insole, midsole, and/or outsole portions) engaged with the foot-covering member. Th

Foot-receiving devices, such as articles of footwear (e.g., athletic footwear, etc.), include a foot-covering member (such as an upper member) and a foot-supporting member (such as a sole member, optionally including insole, midsole, and/or outsole portions) engaged with the foot-covering member. The foot-supporting member may include or define a cavity or void in the heel portion of the foot-receiving device. The foot-receiving device further may include a removable heel pad detachably engaged within the cavity or void.

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1. A footwear system, comprising: an article of footwear including an upper member and a sole member, the sole member including at least an outsole member and a midsole member, the midsole member defining a cavity in a heel portion of the article of footwear, andat least one of the midsole member or

1. A footwear system, comprising: an article of footwear including an upper member and a sole member, the sole member including at least an outsole member and a midsole member, the midsole member defining a cavity in a heel portion of the article of footwear, andat least one of the midsole member or the outsole member including one or more apertures in the heel portion of the article of footwear;a first removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the first removable heel pad including one or more first protrusions extending therefrom to detachably engage the one or more apertures, and wherein the first removable heel pad further includes a first strap member extending from the first removable heel pad; anda second removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the second removable heel pad including one or more second protrusions extending therefrom to detachably engage the one or more apertures, and wherein the second removable heel pad further includes a second strap member extending from the second removable heel pad. 2. A footwear system according to claim 1, wherein the one or more apertures include one or more lateral apertures and one or more bottom apertures. 3. A footwear system according to claim 2, wherein the one or more first protrusions include one or more first lateral protrusions extending laterally from the first removable heel pad to engage the one or more lateral apertures, and wherein the one or more second protrusions include one or more second lateral protrusions extending laterally from the second removable heel pad to engage the one or more lateral apertures. 4. A footwear system according to claim 3, wherein the one or more first lateral protrusions include: (a) one or more first lateral side protrusions extending from a lateral side of the first removable heel pad and (b) one or more first medial side protrusions extending from a medial side of the first removable heel pad, and wherein the one or more second lateral protrusions include: (a) one or more second lateral side protrusions extending from a lateral side of the second removable heel pad and (b) one or more second medial side protrusions extending from a medial side of the second removable heel pad. 5. A footwear system according to claim 2, wherein the one or more first protrusions include one or more first bottom protrusions extending outwardly from a main body of the first removable heel pad to engage the one or more bottom apertures of at least one of the outsole member or the midsole member, and wherein the one or more second protrusions include one or more second bottom protrusions extending outwardly from a main body of the second removable heel pad to engage the one or more bottom apertures of at least one of the outsole member or the midsole member. 6. A footwear system according to claim 1, wherein the first strap member extends from a medial side of the first removable heel pad, and wherein the second strap member extends from a medial side of the second removable heel pad. 7. A footwear system according to claim 1, wherein the first strap member extends around a medial side of the first removable heel pad, and wherein the second strap member extends around a medial side of the second removable heel pad. 8. A footwear system according to claim 1, wherein the first strap member further includes a first handle portion, and wherein the second strap member further includes a second handle portion. 9. A footwear system according to claim 1, wherein the first removable heel pad includes an impact force attenuation element, and wherein the second removable heel pad includes a fluid-filled bladder. 10. A footwear system according to claim 1, wherein the first removable heel pad includes a first impact force attenuation element, and wherein the second removable heel pad includes a second impact force attenuation element that includes an elastomeric material and a fluid-filled bladder. 11. A foot-receiving device system, comprising: a foot-covering member;a foot-supporting member engaged with the foot-covering member, the foot-supporting member defining a cavity in a heel portion of the foot-receiving device system and including a plurality of apertures extending laterally from the cavity and through the foot-supporting member;a first removable heel pad including a plurality of first protrusions to detachably engage the apertures of the foot-supporting member, wherein the first removable heel pad includes a first strap member extending from the first removable heel pad; anda second removable heel pad including a plurality of second protrusions to detachably engage the apertures of the foot-supporting member, wherein the second removable heel pad includes a second strap member extending from the second removable heel pad. 12. A foot-receiving device system according to claim 11, wherein the foot-supporting member further includes a plurality of bottom apertures extending downwardly from the cavity and through the foot-supporting member. 13. A foot-receiving device system according to claim 12, wherein the first removable heel pad further includes a plurality of first bottom protrusions to detachably engage the bottom apertures of the foot-supporting member, and wherein the second removable heel pad further includes a plurality of second bottom protrusions to detachably engage the bottom apertures of the foot-supporting member. 14. A foot-receiving device system according to claim 11, wherein the first strap member extends laterally from a medial side of the first removable heel pad, and wherein the second strap member extends laterally from a medial side of the second removable heel pad. 15. A foot-receiving device system according to claim 14, wherein the first strap member further includes a first handle portion, and wherein the second strap member further includes a second handle portion. 16. A foot-receiving device system according to claim 11, wherein the first removable heel pad includes an impact force attenuation element, and wherein the second removable heel pad includes a fluid-filled bladder. 17. A foot-receiving device according to claim 11, wherein the first removable heel pad includes a first impact force attenuation element, and wherein the second removable heel pad includes a second impact force attenuation element that includes an elastomeric material and a fluid-filled bladder. 18. A method of providing a footwear system, comprising: providing an article of footwear including an upper member and a sole member, the sole member including at least an outsole member and a midsole member, the midsole member formed to include a cavity defined in a heel portion of the article of footwear, andat least one of the midsole member or the outsole member formed to include one or more apertures in the heel portion of the article of footwear;providing a first removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the first removable heel pad including one or more first protrusions to engage the one or more apertures, and wherein the first removable heel pad further includes a first strap member extending from the first removable heel pad; andproviding a second removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the second removable heel pad including one or more second protrusions to engage the one or more apertures, and wherein the second removable heel pad further includes a second strap member extending from the second removable heel pad. 19. A method of providing a footwear system according to claim 18, wherein the one more apertures include one or more lateral apertures and one or more bottom apertures. 20. A method of providing a footwear system according to claim 19, wherein the one or more first protrusions include: (a) one or more first lateral protrusions to detachably engage the one or more lateral apertures and (b) one or more first bottom protrusions to detachably engage the one or more bottom apertures, and wherein the one or more second protrusions include: (a) one or more second lateral protrusions to detachably engage the one or more lateral apertures and (b) one or more second bottom protrusions to detachably engage the one or more bottom apertures. 21. A method of providing a footwear system according to claim 20, wherein the one or more first lateral protrusions include: (a) one or more first medial side protrusions and (b) one or more first lateral side protrusions, and wherein the one or more second lateral protrusions include: (a) one or more second medial side protrusions and (b) one or more second lateral side protrusions. 22. A footwear system, comprising: an article of footwear including an upper member and a sole member, the sole member including at least an outsole member and a midsole member, the midsole member defining a cavity in a heel portion of the article of footwear, andat least one of the midsole member or the outsole member including one or more apertures in the heel portion of the article of footwear, wherein the one or more apertures include one or more lateral apertures;a first removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the first removable heel pad including one or more first protrusions extending therefrom to detachably engage the one or more apertures, wherein the one or more first protrusions include: (a) one or more first lateral side protrusions that extend from a lateral side of the first removable heel pad and (b) one or more first medial side protrusions that extend from a medial side of the first removable heel pad to engage the one or more lateral apertures, and wherein the one or more first medial side protrusions extend a shorter length from a main body of the first removable heel pad than the one or more first lateral side protrusions; anda second removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the second removable heel pad including one or more second protrusions extending therefrom to detachably engage the one or more apertures, wherein the one or more second protrusions include: (a) one or more second lateral side protrusions that extend from a lateral side of the second removable heel pad and (b) one or more second medial side protrusions that extend from a medial side of the second removable heel pad to engage the one or more lateral apertures, and wherein the one or more second medial side protrusions extend a shorter length from a main body of the second removable heel pad than the one or more second lateral side protrusions. 23. A footwear system according to claim 22, wherein the first removable heel pad includes a first strap member extending from the first removable heel pad, and wherein the second removable heel pad includes a second strap member extending from the second removable heel pad. 24. A footwear system according to claim 22, wherein the one or more apertures include one or more bottom apertures, wherein the first removable heel pad includes one or more first bottom protrusions to detachably engage the one or more bottom apertures, and wherein the second removable heel pad includes one or more second bottom protrusions to detachably engage the one or more bottom apertures. 25. A method of providing a footwear system, comprising: providing an article of footwear including an upper member and a sole member, the sole member including at least an outsole member and a midsole member, the midsole member formed to include a cavity defined in a heel portion of the article of footwear, andat least one of the midsole member or the outsole member formed to include one or more apertures in the heel portion of the article of footwear, wherein the one more apertures include one or more lateral apertures;providing a first removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the first removable heel pad including one or more first protrusions extending therefrom to detachably engage the one or more apertures, wherein the one or more first protrusions include: (a) one or more first lateral side protrusions that extend from a lateral side of the first removable heel pad and (b) one or more first medial side protrusions that extend from a medial side of the first removable heel pad to engage the one or more lateral apertures, and wherein the one or more first medial side protrusions extend a shorter length from a main body of the first removable heel pad than the one or more first lateral side protrusions; andproviding a second removable heel pad to detachably engage the cavity in the heel portion of the article of footwear, the second removable heel pad including one or more second protrusions extending therefrom to detachably engage the one or more apertures, wherein the one or more second protrusions include: (a) one or more second lateral side protrusions that extend from a lateral side of the second removable heel pad and (b) one or more second medial side protrusions that extend from a medial side of the second removable heel pad to engage the one or more lateral apertures, and wherein the one or more second medial side protrusions extend a shorter length from a main body of the second removable heel pad than the one or more second lateral side protrusions. 26. A method according to claim 25, wherein the first removable heel pad includes a first strap member extending from the first removable heel pad, and wherein the second removable heel pad includes a second strap member extending from the second removable heel pad. 27. A method according to claim 25, wherein the one or more apertures include one or more bottom apertures, wherein the first removable heel pad includes one or more first bottom protrusions to detachably engage the one or more bottom apertures, and wherein the second removable heel pad includes one or more second bottom protrusions to detachably engage the one or more bottom apertures.