Calvin Klein Jeans Classic Long Sleeve Button-Up Shirt is a versatile spring/summer shirt that pairs a classic collar and round neckline with a button-up front. The cotton-elastane blend offers comfort and a flattering, slightly stretchy feel, with easy machine-care at 30°C. Key attributes: Blue | Light blue | Cotton | Breathable fabric | Slight stretch | Button-up fastening | Round neckline | Classic collar | Long sleeves | Dimensions & fit: Flattering fit | Composition & care: 98% cotton | 2% elastane | Machine wash at 30°C.