From ECCO, the Men's BIOM 720 Sneakers feature:  Upper Mesh and synthetic  Crafted from BREATHRU performance mesh, with wrap-around fabric lining offers softness and breathability ECCO EnCORE midsole air vents enhance breathability from under the foot allowing increased moisture management Designed with BIOM® NATURAL MOTION® that encourages more natural movement for performance and comfort.FLUIDFORM™ Technology with PHORENE™ Midsole provides superior cushioning and flexibility for all-day comfort, rubber outsole for grip and durability Imported.