Maidenform Flexees Women’s Easy Up Firm Control Thigh Slimmer. Flexees easy up easy down firm control thigh slimmer is easy to put on and easy to take off due to a specific finish on the fabric. The fabric is constructed from high denier Lycra® Elastane and has a low friction finish which allows garments to easily pull on. The fabric is soft to the touch and provides all over firm shaping and smoothing.