V-12LEATHEX-WHITE_MARSALA_NAUTIC. Product details: Sports shoe with a flat heel and lace-up fastening. Uppers made from 100% polyurethane-coated organic cotton. Lining is 100% polyester. Cushioning comprises 53% EVA, 24% other materials, 12% cotton, and 11% rubber. The sole is 84% rubber and 16% other materials. Made with cotton from organic farming, which avoids chemicals, pesticides, insecticides, and GMOs, ensuring production with minimal impact on biodiversity.