The Women's Patagonia Fjord Loft Overshirt Jacket is made from heavyweight organic cotton blanket twill flannel, and the front button closure can be done all the way up for warmth or left open for airflow. The deep front pockets warm hands and two chest pockets with button closures keep essentials safe and accessible. Button-closure cuffs provide fit and styling versatility. A relaxed, oversized fit with a shirttail hem and low-hip length for a warm, flattering fit and bum coverage.