The Active U is the same shoe as our popular classic cross-country ski shoe Active C, but has a universal ankle cuff that provides extra stability when skating. and for more safety when descending in both techniques. A modified heel construction helps to keep the foot in the correct position, which is especially helpful for inexperienced cross-country skiers who do not yet have the necessary strength in the ankle area. Combined with a flexible forefoot construction and a waterproof, breathable lace cover, you can comfortably cross-country skiing all day long, whether you choose skating or classic style.