a sole portion comprising a flexible, resilient and moldable material having an upper surface and a lower surface; molded within the upper surface is a foot attachment strap having an enlarged end that is molded within the sole portion, the largest dimension of the enlarged end portions being about 8 to 16 times larger at its largest dimension than the thickness of the foot strap where it meets the top portion of the sole portion; also molded within the sole portion are a plurality of spikes, the spikes comprising a lower exposed portion for gripping the surface upon which the wearer walks and a upper bud portion that extends away from the lower portion at a first diameter and expands to a larger diameter farther from the lower portion, the larger diameter being molded within the sole portion.