Earth shoe

The Earth shoe (also known as the Kalsø Earth Shoe) was an unconventional style of shoe invented in the 1970s in Scandinavia by Danish yoga instructor and shoe designer Anna Kalsø. Its unique Negative Heel Technology design featured a sole that was thinner at the heel than at the forefoot, so that when wearing them, one walked heel-downward, as when walking in sand, with various claimed health benefits. The shoes were introduced in the United States in New York City on April 1, 1970, three weeks before the first Earth Day.

Earth shoe

The Earth shoe (also known as the Kalsø Earth Shoe) was an unconventional style of shoe invented in the 1970s in Scandinavia by Danish yoga instructor and shoe designer Anna Kalsø. Its unique Negative Heel Technology design featured a sole that was thinner at the heel than at the forefoot, so that when wearing them, one walked heel-downward, as when walking in sand, with various claimed health benefits. The shoes were introduced in the United States in New York City on April 1, 1970, three weeks before the first Earth Day.