Molded from lightweight EVA resin, the Cruiser work boot has no seams to leak and no buckles to fail. Also, the EVA closed-cell polymer used in the boot is completely waterproof. The manufacturer notes that at just 2.1 lbs. per pair, Cruisers are virtual featherweights compared to other boots in their class, yet are tough enough to stand up to challenges like rebar wire ties that can shred ordinary PVC boots.
Other benefits of using EVA in the boots include the resistance of stress-cracking and UV radiation, little or no odor, and excellent shock absorption. Furthermore, due to the trapped air in its closed-cell structure, the boots are insulated against cold, even at sub-zero temperatures. — Billy Boots USA, www.billybootsusa.com