These aren’t “sexy” (and full disclosure I didn’t have a c-section but I imagine they’ll work) but I sit around in my underwear all the time and have been loving these. Mostly cotton and they give a nice “hug”....
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wirarpa Women's Cotton Unde...
AZMED Maternity Belly Band for Pregnant Women | Pregnancy Belly Support Band for Abdomen, Pelvic, Waist, & Back Pain | Adjustable Maternity Belt | For All Stages of Pregnancy & Postpartum (Beige)