Inspired by the historic lunar landing of 1969. Features a slip-resistant sole for exceptional grip. Insulating lining keeps your feet warm and dry in any weather. Soft foam lining adapts to your foot, ensuring a snug and comfortable fit. For the best fit, choose the larger size if you're between two sizes. 100% water-repellent for all-day wear. Material composition: 35% Polyamide, 35% Polyester, 30% PVC, 100% Polyester, 100% Rubber.