We have bought these shoes several times as my son has grown because we love them so much. They are a great trail running shoe that is water resistant and yet breathable. Unfortunately, he has already outgrown these after only a few uses. Pet free, smoke free home. From Nike: Look of an Icon A traditional collar and tongue bring the classic look of Pegasus to the trail.The shoe features responsive cushioning and support in the heel.Mesh in key areas on the upper makes it breathable. Secure Fit A dynamic band system around the midfoot gives you secure support as you tackle uneven paths. Rugged Traction The rubber sole features a shockwave-like pattern that mimics mountain-biking tyres.Nubs give you traction and a smooth ride between trails and the road.More traction at the heel and toe helps you stay secure when going up or downhill. Responsive Stability Nike React foam from heel to toe provides responsive and stable cushioning for comfort and smooth transitions on rocky terrain. More Benefits Pull tab at the heel for easy on and off.