- Men's pink shirt - Monaco collar, long buttoned sleeves - SLIM shape, 100% linen - Button closure, IKKS button left cuff - IKKS #actforbetter: material contains 100% linen certified Masters of Linen® and European Flax® See life in pink! The challenge has been met with this Men's long-sleeved shirt in 100% linen. A color that celebrates the summer wardrobe.