Saucony Women's Peregrine 11 Trail Running Shoes Zinc/Sky/Loom100% Leather Imported Synthetic sole Aggressive lugs made of PWRTRAC tacky rubber conform to dig in and confidently grip a wide variety of terrains. PWRRUN cushioning supplies a responsive feel while a rock plate ensures additional protection for pushing uphill and driving downhill with confidence. The new ultralight; durable top layer adds durability to the comfortable air mesh bootie so nothing snags your speed.