Throw on the Izzi Full Zip when you're looking for function with a stylish twist. Made primarily of merino wool, this sweater is breathable, durable, and naturally odor repellent. The Energy fabric is also mixed with a touch of spandex and nylon to keep the fit slim and neat. Bonus: it's machine washable unlike some of your other fancy sweaters. Material: Wool, nylon, lycra.