Abstract: A flexible support element for fitting within a sleeve formed under and around the lower periphery of a bra cup, the invention replaces conventional bra underwires which lose shape during wear or washing, poke through sleeve material at the ends of the sleeve and cause user discomfort. The support element of the invention takes the form of an arcuate length of polymeric or similar material having a circular cross-sectional shape and which can be formed manually into a supporting shape to fit within the undercup sleeve. The present support element provides comfort to a user and does not poke through the ends of the undercup sleeve.