4.3 oz/yd� / 147 gsm, 39% polyester, 58% cotton, 3% lycra� pinpoint chambray; Patented pucker-free taped seams; Specially fused collar, cuffs and placket for total garment performance; Dyed-to-match pearlized buttons; Specially constructed adjustable collar for up-to an extra inch of stretch; Straight collar with built-in collar stays; Bias cut back yoke; Wrinkle-free, stain-release; Slim fit; Easy care