TRETORN Alto Hybrid Black 36 The Alto Hybrid is a stylish and functional boot. It is made from natural rubber and has a warm fleece lining. The boot is waterproof and winter-lined. It features a pull tab at the heel and an inside zipper for easy on and off. The high rubber reinforcement protects against dirt and moisture. The Alto Hybrid is a perfect combination of sporty design, unparalleled comfort and practical construction. Tretorn. Fit: Normal. Upper: 100% natural rubber. Upper lining: 100% polyester. Insole: 100% ethylene-vinyl acetate. Midsole: 100% rubber. Outsole: 100% rubber. Waterproof. Side zip closure. Packaging dimensions: 33,6 x 30 x 12 cm. Warmlined. EUR 110.00 1