The Aritzia Cozy Fleece Mega Flutter™ Sweatpant is an oversized high-rise fleece sweatpants. These are high-rise sweatpants with a wide flutter leg and inseam pockets. They're made with Cozy Fleece — premium midweight fleece famous for its soft-brushed back, sueded face and cloud-nine plush feel. The best kind of cozy.