This waterproof member of our bestselling Upton family offers remarkable versatility from slick sidewalks to soggy fairways to rain-soaked backyards. Great on dry land, too! Light and flexible, seam-sealed waterproof construction. Textile lining with temperature-regulating J M Smart Degree Technology that activates at both hot and cold temperatures, so your feet feel just right all day long on almost any surface. Removable, contoured, cushioned footbed. Ultra-light, cushioned TRUFOAM hybrid lug rubber sole for high rebound, durability, stability, and comfort. 2-year waterproof warranty.