Internal collar stays Extra-long tails stay tucked in Badge eyelets with internal support strap Single-needle detailing Elbeco's Paragon Plus Shirt Series features our premium stretch poplin, vat dyed for optimal color and a colorfastness with Nano Fluid Repellency technology. Additional features include pleated pockets with scalloped flaps, stitched-in creases for a classic military look and high-impact melamine buttons. The long sleeve styles have banded dress collars and the short sleeve styles have convertible collars with internal stays. 65% Polyester / 35% Cotton with Nano Repellency Poplin Weave, 4.25 oz / sq yd, Machine Washable