You bring the vibes—the Ellison UGGfluff Shell Jacket brings the cozy. Made from plush fleece and soft cotton jersey, it features scalloped trim and a rounded collar. You bring the vibes—the Ellison UGGfluff Shell Jacket brings the cozy. Made from plush fleece and soft cotton jersey, it features scalloped trim and a rounded collar. Dedicated to quality craftsmanship, UGG's iconic footwear (and apparel) define the California lifestyle with extreme comfort, multifunctional design, and an indoor-meets-outdoor appeal.