The Filson Polo Shirt in Deep Navy is made from 7.8-oz. long-staple Peruvian cotton jersey, making it superbly soft but also remaining just as durable. The material is vintage-washed, which helps reduce shrinkage when washed. To the hem is the Filson logo. Product Features 7.8-oz. Peruvian cotton blend 3-button placket lined with cotton peached twill Side-seam vents for a comfortable range of motion Two button closure