The lightweight RIEKKO winter boots are designed and engineered for total confidence in icy conditions. The Pomar SPIKE sole consists of rubber and steel studs which bite into sheet-ice, offering maximum slip resistance and traction. RIEKKO is cold weather rated to -35˚C and packed with advanced winter features such as Pomar SPIKE soles, waterproof and insulated GORE-TEX® PARTALANA warm lining, leather detailing, and a side-zipper. All Pomar felt is mulesing-free. LAST WIDTH: H UPPER MATERIAL: Grey wool felt, black waxy nubuck and woolmix collar GORE-TEX® PARTALANA LINING: Waterproof and insulating, warm woolmix lining designed for cold winter conditions REMOVABLE COMFORT INSOLE: Comfort for your feet! SPIKE SOLE: Combination of rubber and steel studs bite into sheet-ice providing maximum slip resistance and traction in icy conditions. (Not recommended for indoor use) WINTER PROTECTION: Cold weather rated to -35˚C LACES: Adjust to fit for your feet ZIPPER: Quick and easy to put on / take off