From L.L. Bean, the Men's Storm Chaser 5 Chelsea Boots feature:  Waterproof leather upper with TEK2.5 waterproof membrane and rubber bottom keep feet dry PrimaLoft polyester insulation keeps feet warm Weather protection best for snow, slush, rain and colder weather. Not designed to stay submerged in water Stretchy goring easy on/off Lined with moisture-wicking synthetic mesh for breathable, fast-drying comfort Soft padded nylon collar for added comfort Covered polyurethane foam innersole with NXT for odor control SolarCore foam underfoot provides a warm barrier to keep feet insulated from cold, wet surfaces Molded EVA midsole provides exceptional cushion and support Siped rubber outsole with multi-lugged tread for a strong grip on wet or icy surfaces Approx. 2 lb. 15 oz. weight (per pair) Size and Fit We recommend ordering a 1/2 size up from your normal shoe size. For example, if you normally wear a size 9, order a 9.5. Imported.