The cunning Arctic Fox (scientific name, Alopex Lagopus) grows a cozy fur coat to fend off cold. You don't have that luxury, but you can take shelter in something even better: Alopex Base Layer Mock. They're as agile and resilient as their namesake, in body-hugging 77% polyester/23% spandex knit that traps body heat, wicks moisture and fights stink. It's smooth, stretchy and quite supportive – never bunches or binds under layers. And we've loaded it with functional features you won't find anywhere else, like stretchy side panels and Reach Gussets™ for freedom as vast as the Alaskan frontier, forward shoulder seams for chafe-free carrying and a mock neck to keep the teeth of the wind away from your throat. When you can't hibernate through an Alaskan winter, out-fox the meanest season with Alopex.