The Rypytys shirt is made of cotton poplin and has a relaxed, straight fit. The shirt features the Unikko pattern with cuffed sleeves and button closures. There is a yoke seam and pleats in the back, and the hem can be tightened with drawstrings. The Rypytys shirt is made of cotton poplin and has a relaxed, straight fit. The shirt features the Unikko pattern with cuffed sleeves and button closures. There is a yoke seam and pleats in the back, and the hem can be tightened with drawstrings. Founded in 1951 by Armi Ratia, who set out to use the power of textiles to bring joy and color to people's lives, Marimekko is a Finnish lifestyle design company renowned for its original prints, architectonic shapes, and vibrant colors.