RSQ Long Sleeve Button Up Shirt. The RSQ Long Sleeve Button Up Shirt offers a classic silhouette with a modern twist. Crafted in a solid color, this shirt features a traditional collar and button-front closure for timeless style. Long sleeves with button cuffs provide a polished finish, while single straps at each side seam allow you to tie and customize the fit for a flattering, tailored look. Perfect for pairing with jeans, skirts, or trousers, this shirt balances professional polish with versatile, everyday wear. 100% Cotton. Machine wash. Imported.