Karhu is more than just a shoe - it’s kind of a whole science. These shoes have been worn by some of Finland’s most legendary runners, winning Olympic medals, Boston Marathon’s and everything in between. Their unique Fulcrum technology was created back in 1987 and has been tested and developed at Jyväskylä university in Finland as well as Iowa State University in USA. Fulcrum? Well, this technology reduces needless vertical and horizontal movement, which helps you land and push away with better body position and rotation than other shoes. To put it simply - Fulcrum helps you forward easier, quicker and more efficiently.