Made from tightly woven Versatech fabric, the Wind Pant is virtually impenetrable to wind, giving you an additional 15° to 20° degrees of warmth. The waistband has a draw cord for comfort closing, and large elasticized pant cuffs fit over our Arctic Boots. The Arctic Wind System is designed to block out the prevailing winds, but also allow for ample breathability. The garments are already up-sized to go over our Arctic System. We recommend one size smaller for EXP Waterproof Arctic System use.