dive suit dive cloth 4mm mesh in chest and back smm mesh in other parts of suit YKKzipper on back very fashionable HF09110224/3MM MEN’S FULLSUITSIZE:XXS XS S M L XL XXL4mm fine mesh in chest and back3mm nylon or super stretch both sides with SBR SCR or CR on other parts of suitA-class Neoprene for a lighter more comfortable suitsVery nice fit and hand feelYKKzipper on backGlued & blind stitching ...