Wonderbras full effect push up design combines lightweight gel and air within padding to naturally enhance the bust boosting you by up to 2 cup sizes straps can be crossed over 45 polyester 43 polyamide 12 elastanewonderbras full effect push up design combines lightweight gel and air within padding to naturally enhance the bust boosting you by up to 2 cup sizes straps can be crossed over 45 polyester 43 polyamide 12 elastane machine washable at 30 preferably in a small mesh