REMOVAVBLE SLEEVESThe two removable sleeves made from 2-mm neoprene make this wetsuit a versatile option: you can take off the sleeves during the race and put them back on during the swimming segment for greater buoyancy. OUTER POCKETSIts outer side pocket offers you the possibility to carry the required GPS or your favourite nutrition product. BUILT-IN WHISTLEThe Swimrun Core includes a whistle, as required for swimrun races, conveniently positioned so that it doesn’t get in the way during competition, but you can still use it easily in case of an emergency. LONG FRONT ZIPWe’ve lengthened the front zip so that the suit is easier to put on and take off. It also provides better ventilation while you’re running.