You can trust Nike ACG gear because it’s born, tried and tested in the field. The Lava Flow vest was dreamt up during a multi-day canoe trip through Big Bend National Park in West Texas, meaning its proven in delivering heat-regulating and water-repellent wear for your core. And when warmth isn’t a need, it packs neatly away into its internal pocket. 100% Nylon, PrimaLoft® Insulation, Nike Therma-FIT ADV Technology, Packable, 2-Way Zip Closure, Zip Pockets, Adjustable Bungee Hem, ACG Tribiner Hardware, Style Code: HV0605-010, Shop All Men's Nike Gilets, Shop All Men's Gilets. Nike Men's ACG Lava Flow Vest in Black/Summit White, Size Large