Excellent addition to your wardrobe. The collar is ribbed knitting for improved durability. The sides have seams to provide structural support. 
.: 52% airlume combed and ring-spun cotton, 48% polyester (fiber content may vary for different colors)
.: Extra light fabric (3.6 oz/yd² (122 g/m²))
.: Modern fit
.: Tear-away label
.: Runs smaller than usual