The 686 Men's Authentic Smarty Cargo 3-In-1 Pant offers versatile warmth and weather protection for the entire season, from deep powder days to sunny spring sessions. Proven Smarty design lets you crank up the heat in January or cool off in April, and Infidry 20 fabric shields you from dumping snow, howling winds, and spring slush. A removable fleece liner pant can be worn with the Smarty on cold days to keep your legs cozy, or you can take it out and just rock the shell for sunny spring sessions. And on top of that, you can remove the shell and just wear the fleece pant while you lounge in the living room after a long pow day. In fact, the liner pant features denim-inspired five-pocket styling so you can wear it out on burrito runs later that night. Infidry 20 waterproofing blocks out blowing snow, but is also breathable to keep you from overheating, and fully taped seams prevent moisture from seeping in throughout the day.