Whether we're mashing the pedals or bombing downhill the Shimano GF400 Flat Shoe keeps us rubber side down. The ULTREAD soles are made of sticky rubber to keep our feet glued to the pedals even when we're bouncing around on rough terrain, and the EVA midsole absorbs impacts so we can float over rocks and roots all day long. The added protection on the ankle collar keeps us pedaling even when the trail gets tight with branches and brambles crowding us in.