100% Polyester Zipper closure ???SIZE TIPS??Asian size may be 1-2 size smaller than US or EU; Usually buying one size up will be OK, but with a extremely big-boned or full figure, we suggest that buying at least two size up; please view the size chart image before ordering ???Material??100% Polyester; the breathable mesh fabric effectively protects your skin from UV ???Full Zipper??Use invisible smooth zipper, durable and beautiful, hight quality smooth pull. ???Breathable and Quick Dry??Material: 100% Polyester; even soaking wet, the jersey will not stick in the body. ???Hem with Silicone Band??Silicone band can provent skin allergy and the cloth upglide during riding very well.