Della Kate Sweater The Della Kate Sweater is the kind of layer you'll reach for on repeat—comfortable, easy to style, and finished with boutique details that make it feel special. Why you'll love it: An easy layer for denim, leggings, and everyday basics A uniquely Hazel Blues® style with the detailed product features kept below Fit note: Please check the size chart below for the best fit. When in doubt, compare measurements to a similar favorite piece in your closet.