Vest with Formotion technology - provides the ultimate performance and comfort while in motion. Pertex microlite is well balanced and offers weight reduction whilst maintaining good strength and abrasion resistance. Primaloft Gold (40 grams) insulated parts covered with a lightweight nylon woven fabric. 100% nylon ripstop, security chest pocket, two zip hand pockets, adjustable draw cord at hem, athletic fit. Material: Nylon.