- 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.