CONCEPT & TECHNOLOGY - AdvancedSkin ActiveDry: AdvancedSkin technical fabrics improve body comfort by keeping you dry, warm and protected when you need it and where you need it. FABRICS - 4-way stretch: The fabric stretches in all 4 directions with the support of elastic yarns. WAISTBAND - Waist adjustment: Always a perfect fit with our infinitely adjustable waist adjustment. Can be adjusted individually to your waist size to discover pure freedom of movement POCKETS - 1 zipped back pocket: Balanced and out of the way, this pocket has a secure, zipped closure. POCKETS - 2 hand pockets: Roomy pockets to keep your hands warm VISUAL ASPECT - Reflective branding: This item has been designed with reflective inserts. All pairs have been washed but never worn. Smoke free See images for vendor size chart.