100% Acrylic. A soft and lightweight warm up sweater in a crop silhouette with a flattering twist front design. This darling crop sweater is made of acrylic yarn that offers warmth and breathability. The reinforced sleeve openings on this incredibly soft crop sweater won't fray or unravel. Comfortable, fashionable, warm and well-made. Ideal for ballet or practice dancing. Made in Guatemala. FITTING GUIDE: One size fits most.