Inov-8 Men's Oroc 280 Spiked Racing And Training Shoe 100% Synthetic and mesh Synthetic sole The neoprene tongue ensures that the shoe can be laced tightly and provides additional protection from dirt and debris. Meta Flex All Inov-8 footwear incorporates a meta-flex groove which is anatomically aligned in front of the metatarsal heads to provide a natural fore foot flex Met Cradle The upper webbing support in our footwear is anatomically positioned to cradle the fore foot behind the metatarsal heads and provide a secure foot hold. TPU Lacing Support - Lacing attached polymer upper supports, cradles the foot more evenly. Unisex - Built on a last based of an average runner's foot giving a good fit for both male and female