SYNTHETIC DOWN FABRICLightweight breathable synthetic polyester down vest that pairs perfectly with your baselayer 3zip pockets offers plenty of storage options Our crowd favorite Performance Tech fabric lines the side of the vest for extra ventilation and great range of motionWEIGHT 200gSHELL COMP 100 PolyesterSIDE COMP 95 Polyester 5 SpandexINNER COMP 100 Polyester Fill