5mm Neoprene Bootie for Comfort and Performance; bioDEWIXDry Footbed Insert Topcover with NZYM for Odor Control and Moisture Management; Cool Weather Lining: Soft, Insulation, Light-weight, Performance Materials for Warmth and Comfort; Lightweight EVA Midsole for All Day Comfort and Support; Rugged rubber outsole for traction; Estimated height: 6 in.; Estimated heel height: 1 in.; Estimate circumference: 12.5 in.; 100% Waterproof, 100% MUCKPROOF