Baffin Colorado Boots - 9/Black Comfort rated to -40F/-40C Cinch style lace system makes tightening laces as easy as putting the boot on: Draw cord cinch strap helps keep snow out of the boot helping keep feet warm and dry Double weave 900 Denier nylon with reflective piping Integrated rubber outsole with arch support Aggressive sole provides extra traction on slick, snowy surfaces