AbraSynthetic Ultra Suede(TM) foam bonded and water-resistant Knee Pads. Water-resistant 4-way stretch woven twill fabric Quiet YKK reverse coil zippers Built-in PolygieneA(R) Stay Fresh antimicrobial and Odor CrunchA(R) scent control systems keep you fresher and less detectable to prey Sizing Note: These men&';s hunting pants are an Athletic Fit, so if you&&';;re between sizes we would suggest sizing up for the best comfort and fit.