Started in 1968 with the original mountain adventure race, OMM is known throughout the world for the hardest marathon event. At the Elite level it is two marathons on consecutive days in a mountainous region of the UK. OMM products are designed for this event and tested by its users. Durability, reliability and a focus on minimal weight are key features of OMM. If you want well designed clothing or a comfortable pack you will struggle to find anything better.