It&';s two pieces of clothing, and you can wear it three different ways' it&';s a vest and a shell. On their own they&';re awesome, together they&';re unstoppable. The shell is made from a sturdy blend of organic cotton and nylon, the vest is this super cushy cotton polyester fleece. The whole thing&';s got functionality in spades. Tons of pockets, super warm, and water resistant to boot. It&';s the perfect transitional Outerwear piece when you&';re heading into inclement weather.