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What if your running shoes could really adapt to your feet -- and not just in the way that footwear retailers describe to solidify sales. These cutting-edge Protocells Trainers present the fascinating possibilities of wearable living materials that can grow, modify and repair themselves through continuous use.

Shamees Aden has been working with Dr. Martin Hanczyc on these innovative kicks, developing a synthetic biological substance that could be 3D printed to fit the wearer's feet like gloves. The composite organic fabric would provide surface protection to toes and soles, yet it could also offer support skeletal and muscular. The anatomical tissue of the Protocells Trainers would thicken in areas that experience more pressure, and they could heal their own tears while bottled in a special solution overnight.