UpSpring Post Baby Postpartum Underwear - Postpartum Panty for Belly Recovery and Compression 92% Nylon/8% Spandex POSTPARTUM RECOVERY PANTIES  compression underwear after vaginal deliveries to mend and slim uterus and belly. FOCUSED COMPRESSION over abdomen shrinks uterus & speeds postpartum recovery. REDUCES SWELLING and slims post baby belly. Supports abdominal muscles weakened from pregnancy. PULL ON AND GO - no bulky belly bands or Velcro. Can be worn as a shaper during post pregnancy recovery. OB/GYN RECOMMENDED after birth postpartum underwear for women