Cork isn’t just for wine bottles: The NRGy Pro 1 surrounds feet with it. Nordica’s new Custom Cork liner technology uses cork and resin in the liner, added to form to the contour of the foot through body heat. Bonus features from cork include insulation and the ability to hold its shape. The 100 mm-lasted NRGy Pro 1 has a 130 flex, hand-stitched liners with a roomy toe box, dual canting for easy cuff alignment and high traction soles.