The Alloy Jacket is a grid-fleece mid layer with excellent mobility and breathability properties. Using light fleece around the whole body wicks moisture while trapping heat. It&';s low bulk makes it equally suited to add warmth to any shell or for cool weather lifestyle activities. HIGH PERFORMANCE BREATHABLE MID LAYER 20D RIPSTOP NYLON OVERLAYS IN ELBOWS, CHEST & SHOULDERS GRID-BACK FLEECE BODY FOR EXTREME BREATHABILITY, LOW BULK GRID-BACK FLEECE WICKS MOISTURE AND PROVIDES COOLING AIRFLOW STRETCH PROPERTIES FOR COMFORT AND MOBILITY IDEAL FOR LAYERING 3M(TM) SCOTCHLITE(TM) REFLECTIVE MATERIAL 2 ZIP HAND POCKETS 1 CHEST POCKET LOW PROFILE CUFFS FOR EASY LAYERING LOW PROFILE STRETCH BOTTOM HEM ZIPPER CHIN GUARD FOR NEXT-TO-SKIN COMFORT MORE BREATHABLE THAN OVERRIDE ALLOY JACKET COMFORT COLLAR LINING YKKA(R) ZIPPERS