Main upper material is a combination of advanced microfiber, knitted mesh, and seamless thermo-welded microfiber. Lower tongue, lateral and medial quarter in knitted mesh construction. Enhanced TPU ankle extended into lower lateral area. New TPR heel counter design. Medial dual density ankle protectors between the upper and padded lining. Replaceable anatomical EVA footbed, with Lycra lining on top. Extremely lightweight, specifically compounded rubber sole. CE-certified.