Diadora NUCLEO 2 GR Gravel Shoe Review by Erin Trail The NUCLEO 2 GR Gravel Shoe is Diadora’s all terrain shoe offering, excellent on surfaces ranging from gravel roads, light trails and even pavement. Technical Details Unisex sizing ANIMA midsole, increasing midsole responsiveness by 30%, while reducing its weight by 20% A multi-density DDattivo insole,…