Built with ZXT Rubber -- the same proven rubber used in the Grange and Burly -- these boots offer time-tested durability with the flexibility to roll them down when the temperature rises. The Alpha Range is made to keep you going from dawn to dusk because there's no time for discomfort when there's work to be done. Weight: 3.3 lbs per pair. Height: 12". 5mm Neoprene. Removeable Polyurethane Footbed. Fiberglass Shank.