The Rome Bronson Mitt comes with a durable goatskin Palm to make them last longer. The Thinsulate insolutation & the heat reflective lining on the back of hand & cuff, provides maximum warmth for those cold days. The Hypora 15K Waterproof design & DWR coating on the outside of the mitts for additional waterproofing, leaving you with warm & dry hands inside the mitts. Use the cinch to block out snow for the deep powder runs.