RSQ Long Sleeve Button Up Shirt. The RSQ Long Sleeve Button Up Shirt in pinstripe adds subtle pattern to a classic silhouette. Featuring an allover pinstripe design, this shirt has a traditional collar and button-front closure for timeless style. Long sleeves with button cuffs offer a polished finish, while single straps at each side seam let you tie and customize the fit for a flattering, tailored look. Perfect for pairing with jeans, trousers, or skirts, this pinstripe version brings refined detail to everyday and professional outfits 100% Cotton. Machine wash. Imported.