Mizuno Be 2 Strength And Conditioning Training Shoes ** UPDATED ** Redesigned Upper - The aymmetrical design upper are made to help improve fit while air vents around the upper help improve breathability, keeping your feet nice and cool during intense workout. DFC (Dynamic Function Heel Counter) Heel Cup - Cups your heel to improve its natural function. Forefoot Flex Grooves - Enhances flexibility for a more natural, efficient range of motion. Activation Insock - This replicates the unique innovation of Waranji sandals, it allows the toes to move up and down and increases muscular activity and strength. Skeletal Outsole Design - This highly grippy and lower to ground outsole helps your foot adapts to the ground better and improve landing efficiency.