Zegna Zegna's new spring and summer men's business casual lapel polo shirts use imported SUPIMA cotton liquid ammonia mercerization process. This fabric is SUPIMA cotton imported from the United States. SUPIMA has the reputation of cashmere cotton. If you want to know more, you can search on Baidu: SUPIMA. Enter SUPIMA Baidu to learn about it. Each piece comes with a SUPIMA Association certification tag (formal authorized channel). The finishing process of this fabric is advanced liquid ammonia treatment. A liquid ammonia fabric finishing machine costs up to 5,000 10,000, the threshold is quite high! Only a handful of first-tier groups in China have liquid ammonia finishing machines. 1. Fabrics treated with liquid ammonia will feel smoother, because liquid ammonia has strong corrosive properties and can burn hair balls on the surface of the fabric. Burn! 2. The fiber toughness of the fabric treated with liquid ammonia is greatly improved, which can effectively improve the wear resistance of the fabric and improve the wearing life! 3. The overall fiber structure of the fabric treated with liquid ammonia changes, and the anti-wrinkle performance is also reduced. It has been improved so that fabrics that were prone to wrinkles will not wrinkle now! 48-56 (model weighs 173,143 pounds, upper body size 50),,Zegna