Features of The North Face Men's Oscilate Shoe Upper: Features an adaptive engineered knit Upper with hollow tube construction that enhances thermoregulation, stretch and comfort External TPU heel counter works in concert with our midfoot and forefoot TPU overlays to deliver lightweight stability and a natural lockdown Fit Eco-friendly OrthoLite Hybrid Footbed Sole Unit: Proprietary Dual-Density Midsole is engineered to deliver the ultimate underfoot cushioning experience while maintaining 360 degrees of flexibility and support Proprietary EXTS Outsole traction system Co-molded Outsole minimizes weight and provides 360-degree flexibility and traction on varying terrains