The Original Mountain Marathon (OMM), formerly known as the Karrimor International Mountain Marathon (or KIMM), is a 2-day Mountain event, held in a different region across the UK every year. It was first held in 1968 and continues today.
OMM have also started producing their own branded outdoor clothing and equipment. Items required on the event, such as waterproof jackets and trousers, backpacks and sleeping bags, have been produced, specially adapted for the event. The Kamleika (from the Aleutian word for a long robe) range of jackets, smocks and trousers have become famous amongst mountain marathon runners and hikers alike. They are unique in that they are specially developed to be stretchy and produce minimal noise when running. OMM are currently planning a larger range of clothing and equipment, also specially created for mountain marathons.