... and odor-free.2.Arch support make your foot comfortable, Custom cushioning with every step.3 Breathable & absorb ... and cushioning,shock absorption.5 Comfortable,high elasticity6.Environmental protection, Low-carbon, made of MDI FOAM, recycle PU FOAM7 Factory ... 2mm~120mmcharacteristicseasy breathing, moisture, absorption, deodorization, bacteria-kill, comfortable and protection Ortholite PU Foam