The Hammer Hi-Bird Insulated Vest is a versatile garment that every outdoorsman should have in their repertoire. With a healthy dose of 100g Primaloft® insulation, the vest excels as an outer layer worn over a hoody for unparalleled thermal on-demand versatility or reach for the Hammer Hi-Bird Insulated Vest when you need a mid-layer to keep your core cozy when conditions deteriorate, and the hunting gets frantic. The 4-way flex stretch woven poly ripstop shell combined with poly/spandex panels stands up to hard use and allows you exceptional flexibility. The shell offers wind protection to ward off the worst Mother Nature can throw at you. A zippered left chest pocket is perfect for securing valuables. Two zipped waist pockets are available to coddle hands and thaw frozen calls.