Muck Boot Field XT FLD-RTXT Realtree Xtra All Terrain Sport Boot Waterproof NIB 100 percent waterproof flex-foam upper with four-way stretch nylon minimizes bulk for enhanced flexibility Stretch-fit topline binding hugs calf to trap heat and expel cool air Wrap-up toe bumper guards against scrapes and stubs Shank reinforcement boosts support Achilles overlay increases protection Men's size 8 is comparable to Women's size 9 Men's size 9 is comparable to Women's size 10