We have free shipping at both ways and greatest sales for the Ugg Muscovy Marsh Leather Keep warm and dry in the classic ‘Muscovy’ boot from UGG Australia’s Duck Collection. Full-grain leather upper features a waterproof and windproof eVent membrane that vents moisture from inside the shoe for a durably waterproof boot. eVent Fabric Through Direct Venting proprietary and patented technology, millions of tiny pores are able to breathe at their full potential, allowing sweat to vent directly to the outside of the fabric in one easy step. Elastic gore inserts for easy on/off. Plush sheepskin lining naturally wicks away moisture for an optimal inner environment. Cork-infused molded rubber outsole with traction pods offers increased grip in wet conditions.