The Inov-8 Race Ultra 290 Trail Running Shoe utilises a flatter outsole which encourages a more stable ride, even when fatigue begins to set in and form begins to suffer. 2-Arrow Shoc Zone technology delivers superior cushioning and therefore comfort, even over longer distances. The Race Ultra 290 features an X-STATIC footbed, which eliminates the bacteria that feed on sweat, thereby reducing odour as well as stopping debris from entering the shoe. A mesh lining allows air to permeate the shoe and the feet to stay dry and comfortable. The Tri-C endurance outsole uses three different rubber compounds that deliver an equal blend of traction and durability and cushioning, meaning you can cope with the repetitive impact of ultra-running. The Race Ultra 290 features a heel to toe drop of 8mm, which is lower than that of traditional running shoes. The multi-finger polymer Meta Shank aligns with individual metatarsal heads to accommodate natural foot movements and enhance underfoot impact protection. The fit of the Race Ultra 290 is generous, resulting in increased comfort even when your foot has swollen during long-distance races; the shoe's upper has been carefully designed to minimise friction and enhance efficiency. Despite the enhanced cushioning and other features of the Race Ultra 290, the shoe still manages to remain incredibly light, with a men's UK size 8 weighing in at just 290 grams, making the Race Ultra 290 the perfect shoe for the long-distance runner seeking protection, comfort and agility in equal measure..