Max cushioning is uniquely balanced with support and stability. Featuring a lightweight midsole rebound technology to enhance your walking motion, this sneaker goes the distance. A soft, breathable knit upper and a biomechanically designed footbed for comfort that keeps you in motion. Design: Breathable knit upper Durable rubber outsole for traction Built-in VIO MOTION Technology footbed featuring contoured arch support, with shock absorbing cushioning, deep heel cup to provide stability and forefoot flexibility For optimal comfort, wear your new Vionic shoes for a few hours to let your feet adapt Within 1-2 weeks, you should experience full orthotic comfort and support The exclusive alignment technology balances the whole you