- Size: 42 • Insoles with real wool for comfortably warm feet, even at sub-zero temperatures. • Aluminum bottom that reliably protects against ground cold. • Soft and warm, ideal for shoes, boots, hiking shoes, sports boots, rubber boots, and riding boots. • Can be cut to size to fit each shoe size, including half sizes. • Durable, dimensionally stable, easy to care for, and long-lasting, made in the EU.