Beauty meets biomechanics in the retro-inspired exterior of the F-Mode Flow trainers, combined with cutting-edge comfort technology. Key Features: Our legendary Microwobbleboard technology works behind the scenes to deliver uncompromising support that helps to optimise your natural body movements to keep you feet moving comfortably for longer. Ergonomically engineered to help optimise your body's alignment, natural movement & energy Light pressure-diffusing Microwobbleboard midsole with triple-density cushioning follows three footstep stages (firm heel/soft middle/medium at toes) Natural arch support Scotchgard protected Enhanced grip suited to varied surfaces These shoes have been granted the APMA (American Podiatric Medical Association) Seal of Acceptance, for footwear found to promote good foot health