Soft hand, washed light cotton flannel shirt from Mazzarelli in petrol blue checkered pattern and finished with grey vintage 'corozo' buttons. The corozo nut coming from the tagua tree, also known as Vegetal Ivory. It has been the preferred material for button production for decades in the past, before plastic buttons were used. It has a unique grain pattern, delivers scratch-free buttons and is extremely durable. Fabric made by Thomas Mason, which is a brand of the Albini Group.