Costume National Classic Round Neck Long Sleeve Shirt with Button Fastening offers a clean, versatile look centered on a round neckline and button closure. The cotton–elastane blend delivers comfort with subtle stretch, making it suitable for spring/summer wardrobe layering or smart-casual wear. Key attributes: Black | Cotton | Stretch | Button fastening | Round neckline | Classic collar | Long sleeves | Composition & care: 96% cotton | 4% elastane | Machine wash cold, gentle cycle. Do not bleach. Tumble dry low or hang to dry. Cool iron if needed.