Used Scubapro Everflex Yulex Vest 5/3 mm Women'sWhen worn with a SCUBAPRO steamer or shorty, the comfortable 5 3mm hooded vest substantially increases thermal protection in your torso area. The vest provides 5mm of additional thermal protection on the front and back panels with 3mm side panels to increase range of motion. To warm the head, the attached hood offers 3mm of thermal protection and features a 2mm face seal to help seal off water entry and minimize heat loss.