Tilly's Square Neck Cinch Long Sleeve Top. The Tilly's Square Neck Cinch Long Sleeve Top for women combines soft comfort with a flattering, modern silhouette. Made from a smooth polyester-spandex blend, it feels gentle against the skin while offering just the right amount of stretch. The square neckline adds a stylish touch, and subtle cinching at the side seams creates a tailored, feminine fit. Finished with long sleeves, this versatile top is perfect for layering or wearing on its own. 96% Polyester 4% Spandex. Hand wash. Imported.