Karhu is a Finnish running shoe company that was started back in the early 1970s who disappeared for a while and began making running shoes again in the early 2000s.  The keystone of their shoe designs lie in their Fulcrum Technology which is based on the idea of forward propulsion throughout foot strike.  Over the

As the fall marathon season approaches many runners are looking for a lightweight, well cushioned, and moderately supportive shoe for faster paced training runs races. Many racing flats are simply too minimal for most of us to race in for a full marathon distance, while many “lightweight trainers” are often closer to 10 oz and don’t provide the zip and feel of a racing flat.

Karhu is based on one founding principle, natural movement. Karhu’s shoes claim to increase forward momentum, efficiency and stability. In this review we will go into detail on the technologies used in Karhu shoes and whether they are effective in increasing efficiency and forward momentum