This is a boy's   size S (6/7).  This size fits height 45-49.5" chest of  25" - 26",   Insulated, Moisture wicking,Flat Seam, Flex Fabric, Odor Control.  86% polyester 14% spandex and new with the tags!   We combine shipping!  Request a total from your shopping cart to get a combined invoice.  If you are unable to then your extra shipping costs will be refunded back to you after your items are packaged.