The Short Sleeve Orto Shirts are made from an exclusive mixed fabric of European linen and organic cotton. The organic cotton adds softness and the linen brings all the great features of linen fabrics; cooling, lightness and breathabilty.  Made from natural European linen (45%) and organic cotton (55%) Light poplin weave (136g/sqm) Yarn dyed and fabric woven in Portugal according to Oeko-Tex standard Shirt tailored in Portugal Designed and developed in Switzerland Boxy Fit Resort Collar Chest Pocket Buttons made from natural corozo All labels made from organic cotton Sewn-in gusset that reinforces the side seam Horizontal green button hole guarantees a perfect hold of the last button and reminds you of the distinctiveness of your shirt The shirt was pre-washed during the production process in order to guarantee size and fit stability after your first wash at home Production transparency is very important to us.