2xu active tri mens singlet this durable 2xu active tri mens singlet has been crafted for ultimate comfort with flat lock stitching the streamlined seams makes for smoothness against the skin utlising sbr skin x fabric this singlet gives moisture management with a mid gauge construction for great ventilation further features include a front semi lock half zip and rear angled pockets mens singlet flat lock seam sbr skin x fabric moisture management mid gauge constructio