5.3 oz.,; 65% polyester, 35% cotton piqu; Durable, wrinkle-resistant piqu fabric; Moisture-wicking; Retains color and shape for a professional look that lasts; Minimal shrinkage; Welt knit collar that resists curling; Two-button placket with bottom stitch reinforcement; Dyed-to-match buttons with durable cross-stitching; Welt knit sleeve bands