The Aria is an ultra-light weight, relaxed look mid-layer made from Icebreaker's Featherweight 120gm Merino wool with just a touch of nylon for durability. Perfect for warming down or just lounging, the Aria has a double layer funnel neck hood, dalman sleeves and dropped armholes, all of which improve comfort and mobility. Made from high-quality Merino wool, the Aria is also naturally breathable so you won't overheat if you fall asleep next to the fire.