The COS menswear team designed this short-sleeved shirt to tackle smart-casual dress codes. It's crafted from smooth cotton and a mulberry silk-blend poplin with mother-of-pearl buttons and shaped for an easygoing, relaxed fit. Layer the camp collar under a BLAZER for a modern take on tailoring. Relaxed fitButton closureShort sleeves, curved hem 80% Cotton, 20% Mulberry silk / Machine wash Back length of size M is 28.74” / Model wears a size M