COOFANDYMen's Casual Linen Dress Shirt Plaid Collar Long Sleeve Button Down Shirt

How can a shir that is "65% Polyester,35% Polynosic." be linen?

How do the collars hold over time? Normally I buy button down collars on budget shirts, otherwise the collars can curl or get blown out.

Is the Navy Blue really blue? The picture looks black.

Hola el detalle de la camisa dice mangas corta y es mangas largas