Description Vamp: 60% Polyurethane, 24% Recycled Polyamide, 16% Polyamide Quarter: 60% Polyurethane, 24% Recycled Polyamide, 16% Polyamide Tongue: 100% Recycled Polyester Vamp Lining: 100% Recycled Polyester Collar Lining: 100% Recycled Polyester