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 B*** 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 Prima Loft® Insulation Nike Therma-FIT ADV Technology Packable 2-Way Zip Closure Zip Pockets Adjustable Bungee Hem ACG Tribiner Hardware Style Code: HV0605-010