3.8-ounce, 100% polyester tricot
Snag resistant
Moisture-wicking
Double-needle stitching throughout
Tag-free label
Taped neck
Flat knit collar
3-button placket with dyed-to-match rubber buttons
Set-in, open hem sleeves
Armhole accent
Side vents
Specs: https://www.apparelvideos.com/cs/CatalogBrowser?todo=ss&productId=ST650