Rhythm Estelle Button Up Cardigan. The Rhythm Estelle Button Up Cardigan is a timeless wardrobe essential designed for effortless layering and everyday wear. Crafted from a soft polyester-wool-nylon-spandex blend, it offers the perfect balance of warmth, comfort, and stretch. The solid cream color gives it a clean, versatile look that pairs easily with anything from denim to skirts. A button-up front adds classic detail and styling options, while the ribbed neckline, cuffs, and hem provide structure and a polished finish. Chic yet cozy, this sweater is a go-to piece that transitions seamlessly from casual outings to elevated ensembles. 45% Polyester 32% Recycled Polyester 11% Nylon 8% Wool 4% Spandex. Hand wash. Imported.