Founded in 1774 by Johann Adam Birkenstock, the company's original purpose was to create shoes that support and contour the foot, compared to the flat soles of many shoes during that time. In 2015, the EVA, a rubber sandal made out of ethylene-vinyl acetate, was made as a cheaper alternative to the original cork Birkenstock. Birkenstocks have appeared in the world of High Fashion many times, with designers giving their own spin on Birkenstocks.