The Itasca Men's Mammoth Apres Ski Boots are tall, incredibly lightweight winter boots are made with an injection-molded TPR sole, a water resistant nylon upper and are topped off with an adjustable cinch collar to keep the snow where it belongsâ¦on the outside. Foam Insulation will keep you warm. Just slip them on and you're ready for a day outside either in the city or on the slopes. Need to run a quick errand, shovel the driveway, take the dog for a walk, or just forget to take your boots to the mountain with you? Just slip the Mammoth on and go.