FourthWear Postpartum Recovery Underwear

Regular price $38.00
Shipping calculated at checkout.

Pack Size


  • Securely holds an ice or heat pack virtually anywhere in the garment through a single outer pocket.
  • Recommended for use with Nyssa’s FourthCare® Perineal Ice/Heat Pack that is uniquely contoured to fit between women’s legs. Sold separately or in our Go Fourth™ Bundles & Kits.
  • Soft seam, empathetic design with a widened gusset and fold-over waist that can be worn above or below the belly.
  •  OB-GYN approved.


Sizing Info:

Nyssa's sizing is based on standard maternity sizing. If you wear a Medium in your maternity pants, we recommend you purchase a S/M of FourthWear® Underwear.

If you're between sizes, we recommend going with the smaller of the two sizes as FourthWear® Underwear is supremely stretchy.

FourthWear® Underwear Size Chart

Pants 0-2 2-4 4-8 8-10 10-16 18-22 22-26
Waist 26-32"
66-81 cm
71-86 cm
76-91 cm
84-99 cm
91-107 cm
94-114 cm
104-125 cm

Bye-bye mesh undies!

When we started Nyssa, one of the first things we wanted to tackle was the flimsy, low-functioning mesh underwear given out in hospitals. Sure, they’re free. But try wrangling a newborn in underwear pulled down to your knees by giant pads and ice packs that are falling out. It. Sucks.

Nyssa’s FourthWear® Postpartum Recovery Underwear is the first eco-friendly, 4-way stretch fabric underwear designed to securely hold an ice or heat pack in the vaginal/perineal area or at the site of a caesarean incision. A wise woman once said, “Change what you cannot accept.”

Optimally used with Nyssa’s FourthCare® Perineal Ice/Heat Pack.

Additional Product Features:

  • Made with 4-way stretch, eco-friendly fabric that comfortably conforms to changing postpartum figures.
  • Soft seams (tri-panel sizes) for less irritation.
  • Widened gusset to accommodate oversized pads.

Materials & Care:

  • Body: 85% Recycled Polyester, 15% Spandex
  • Machine wash cold
  • Imported materials, made in Mexico and The United States