The Wing has a Flexiknit technology upper. These uppers are snug, seamless and hug the foot to give a natural sensation and yet provide enhanced performance. The upper is flexible enough for any movement. The PU design components on the side and the contrast branding add a stylish edge! The insoles have Ultrahop technology that is designed to support, cushion and adapt to any spontaneous movement. This shoe provides unconstrained comfort – so put on your Wings and fly!