The North Face Endeavor Mid II Hiking Shoe Mens Midsole Material: Compression-Molded EVA--The EVA material is heated, reducing the density, for a lighter weight. Outsole: UltrATAC--UltrATAC outsole is an ultra-lightweight construction around the perimeter of the show for enhanced durability. Model Number: ASLL-FR1 Classification: Lightweight Hiking Recommended Fit: These shoes run True to Size.