deadhorse bibs abrasion resistant primaloft® insulation primaloft insulation warms in frigid temps body-mapped stretch zones waterproof knees and seat - get down to business and stay dry located 250 miles north of the arctic waterproof reinforcements hidden in knees and seat to head off a soaking bulk-free primaloft insulation traps gaiters let you slip them on quick moves freely thanks to stretch mesh panels in the back and crotch plus