Handmade, 100% natural rubber, 5mm neoprene lining Hi visibilty upper ( material compliant to EN1150 ) x2 horizontal segmented retro reflective bands 3M Improved comspicuity in low light, sunlight, during rainfall, or at night. 2mm Airmesh fibre network regulates the internal climate of the boot. Rubber outsole, EVA midsole and engineered insole, ensure all day comfort. Cleated outsole, delivers sure grip and a hard wearing surface.