Fila Women's Alfa II Tennis Shoe 100% Synthetic and leather Rubber sole Teijin Cordley upper allows foot to breathe in all conditions Cordley is soft and supple right out of the box Dri-Lex lining rapidly diffuse perspiration away from skin Abrasion resistant medial toe wrap last up to 8 times longer than traditional materials Otholite sockliner offer anti-microbial and odor fighting features. Lateral support wrap ensures the foot stays securely centered on midsole and prevents sliding