FourthWear Postpartum Underwear + Between Legs Perineal Ice/Heat Pack - Nyssa

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Woman in FourthWear Postpartum Recovery Underwear folding over waist

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FourthWear Postpartum Recovery Underwear + Between Legs Perineal Ice/Heat Pack

Name: FourthWear Postpartum Recovery Underwear + Between Legs Perineal Ice/Heat Pack
Brand: Nyssa
SKU: 4W-U-P-XXSXS-BLK-01
Price: 49.00 USD
Availability: InStock

$49 $53

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A favorite duo among new moms— one pair of Nyssa’s OB-GYN recommended FourthWear Postpartum Recovery Underwear and one uniquely contoured Between Legs Perineal Ice and Heat Therapy Pack in a lovely reusable pouch. Designed for Vaginal births or Cesarean deliveries, FourthWear Underwear is the original dual-layered postpartum underwear with a unique 360° pocket design to securely hold ice or heat therapy between the legs, at the site of C-section incision scar, and around back where postpartum recovering bodies need it most. It was thoughtfully designed in collaboration with an Innovation Advisory Board of OB-GYNs, Doulas, Midwives, and Pelvic Floor Therapists.

FSA/HSA eligible.

What's Included

One pair of FourthWear Postpartum Recovery Underwear.
One uniquely contoured Between Legs Reusable Ice/Heat Pack.
A complimentary reusable gift pouch.

Composition + Care

Underwear: 85% Recycled Polyester, 15% Spandex. Machine wash cold.
Reusable Ice/Heat Pack: Measures less than 0.5 in/1.25 cm in thickness. Store in the freezer for cooling comfort. Microwave for 15 second intervals for heat therapy. Do not machine wash. When needed, clean by rinsing in cold water with mild soap and let air dry.

Shipping

Ships in 1-2 business days.

Gift Wrapping

Tote + Note - $9

Add one of our signature totes and a handwritten gift message to your order. Please do not forget to leave your message at checkout.

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Pairs Great With...

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Complete Coverage Organic Cotton Cover Postpartum Pads

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Uterine Reusable Ice/Heat Pack

What To Know & How It Works

FourthWear Underwear
Between Legs Pack

Postpartum Recovery Underwear

Recommended for use with our uniquely contoured Between Legs and Uterine Reusable Ice/Heat Packs to support healing and provide relief EVERYWHERE.

Model in Nyssa FourthWear Postpartum bralette & underwear

Made with 4-way stretch, eco-friendly fabric that comfortably conforms to changing postpartum figures and holds ice/heat packs in place.

Model folding Nyssa FourthWear Underwear down over ice - heat pack.

Has a seamless ultra-high waist that can be worn over or under a pregnant or postpartum belly.

Nyssa FourthWear Postpartum Underwear with Ice/Heat Pack

Designed with an Innovation Advisory Board of women's wellbeing professionals, including OB-GYNs, Doulas, Midwives, and Pelvic Floor Therapists.

Postpartum Recovery Underwear

Securely holds an ice or heat pack anywhere in the garment through our patented 360° pocket design.
Recommended for use with our uniquely contoured Between Legs and Uterine Reusable Ice/Heat Packs to support healing and provide relief EVERYWHERE.
Made with 4-way stretch, eco-friendly fabric that comfortably conforms to changing postpartum figures and holds ice/heat packs in place.
Has a seamless ultra-high waist that can be worn over or under a pregnant or postpartum belly.
Full-coverage seat to hold pads in place and never ride up.
Designed with an Innovation Advisory Board of women's wellbeing professionals, including OB-GYNs, Doulas, Midwives, and Pelvic Floor Therapists.

Between Legs Reusable Ice/Heat Pack

Specially contoured to fit between your legs and soothe the vulva, perineal region, tailbone and lower back.

Woman in FourthWear Pospartum Bralette & Underwear holding baby

Made with a uniquely lightweight, premium soft gel interior that delivers penetrative ice/heat therapy even through thick postpartum pads.

Close-up of Between Legs Ice - Heat Pack with diagram showing 21.5cm length and other features

Long enough to cover both the site of caesarean incision and perineum for relief from any type of delivery.

Close-up of front of Postpartum Between Legs Ice - Heat Pack

Features a soft, hygienic woven
plastic fabric outer layer with Nyssa's
signature pattern by Kit Agar— both
comfortable and easy to keep clean.

Close-up of back of Between Legs Ice - Heat pack with 'Bodies are Brilliant' motto

Microwaveable for heat therapy and freezable for cooling relief.

Between Legs Reusable Ice/Heat Pack

Specially contoured to fit between your legs and soothe the vulva, perineal region, tailbone and lower back.
Made with a uniquely lightweight, premium soft gel interior that delivers penetrative ice/heat therapy even through thick postpartum pads.
Long enough to cover both the site of caesarean incision and perineum for relief from any type of delivery.
Features a soft, hygienic woven
plastic fabric outer layer with Nyssa's
signature pattern by Kit Agar— both
comfortable and easy to keep clean.
Microwaveable for heat therapy and freezable for cooling relief.

As FEATURED IN

"Genius"

"Game-changing"

"Revolutionary"

"Nyssa is facilitating a maternal health revolution"

why we love it

It's a postpartum recovery must-have!

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 while you’re wearing surgical undies that hang down to your knees under the weight of giant pads and ice packs. People who give birth deserve better. That’s why our first innovation had to be FourthWear, the world’s first luxuriously soft, eco-friendly, 4-way stretch underwear specially designed to hold an ice or heat pack in the vulva/perineal area or at the site of a caesarean incision— so you can really soothe as you move into motherhood.

FAQs

Need support? Just ask us.

Is FourthWear Underwear for caesarean or vaginal birth recoveries?

We often don’t know exactly how our birth journey will shape up, no matter what our plans are. FourthWear Postpartum Recovery Underwear is designed specifically to provide ultimate comfort for both caesarean and vaginal birth recoveries.

For vaginal recoveries, FourthWear provides a widened gusset to accommodate large postpartum pads and a comfortable high waist that can be folded down to meet the needs of changing bodies. An ice/heat pack (one of Nyssa’s specially contoured packs or one of your own) can be inserted inside the garment and placed between the legs to soothe vaginal and perineal pain, swelling, or sutures. Another pack may be placed over the abdomen or in the back to ease pain related to postpartum cramping and any other discomfort that stems from delivery.

For caesarean recoveries, FourthWear provides the same functionality along with a smooth, soft fabric over the incision area. Ice/heat packs may be placed over the site of an incision to help reduce pain and discomfort and to facilitate healing of the incision area.

Which size of FourthWear Underwear is right for me?

Figuring out the right size for your changing body might seem a daunting task. We make FourthWear Underwear with super soft, incredibly stretchy fabric that flexes and adapts to your changing figure to make it a bit easier. Whichever size you wear in maternity clothing can translate to the perfect underwear size. We recommend choosing the smaller size if you are in-between sizes. For example, if you wear a large in maternity clothing, we recommend purchasing the M/L, whereas if your maternity size is XL, then our L/XL would likely be the better fit. Importantly, the seamless high-waist can be rolled down to maintain a tighter fit as your body changes after giving birth.

Everybody’s body is different. We all gain and lose weight throughout the birth and recovery process at different rates. For the majority of people, weight gain and loss will happen mostly in the belly region and along the hips. FourthWear Underwear is designed to change with your body; however, if a significant amount of weight is gained or lost (+80lbs), you may need to purchase an additional size.

When should I use ice and when should I use heat?

Ice therapy is the traditional weapon of choice for dealing with soft tissue injuries that involve swelling. Cold therapy, also called cryotherapy, reduces blood flow, which mitigates pain-causing inflammation and swelling. This makes ice a useful tool for everyday pain management and application wherever there is swelling (eg: incision site, chafed nipples). Heat, on the other hand, opens vessels to increase blood flow, making its application critical for alleviating muscle pain and removing blockages caused by clogged milk ducts.

Are the materials and cooling agents in the ice/heat pack safe?

The exterior of our ice/heat packs is made of an FDA-approved knitted plastic/fabric composite. The cooling agent is comprised of naturally derived ingredients: Glycerine, Water, and Sodium Polymer. These ingredients are all non-toxic and approved by the FDA.

Great

The underwear are super comfy, I really like the material. And the packs work great - I have lots of disposable cooling/ice packs left so was specifically looking for something with heat, and these have been great, feels really nice.

Highly recommend!

These products exceeded my expectations! I ordered the underwear in extra large and it fits true to size. They’re non binding at the waist and are very comfortable. The ice packs come in a zipper bag and last a good while. I’m post menopausal and have MS so I use them to keep from getting overheated. Wonderful products and I highly recommend them!

I would give a 5 star if they fit me better. I'm a size 23 waist and they are a bit big for me though they stay put so I can still use them. A standalone xxs (instead of xxs/xs) that is more similar to the teen S size would be a good solution for me!

The best postpartum underwear!

These are so comfy on my C-section scar! I’m in love with these underwear and can’t rave about them enough.

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How Long Does It Take To Physically Recover From Giving Birth?

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Benefits of Ice and Heat Therapy for Postpartum Recovery and Menstruation

FourthWear Underwear FourthWear Bralette

NYSSA SIZE STD. US/CAN SIZE STD. UK/AUS SIZE

XXS/XS 00-2 2-6

XS/S 2-4 6-8

S/M 4-8 8-12

M/L 8-12 12-16

L/XL 12-16 16-20

1X/2X 18-22 22-26

2X/3X 22-28 26-32

3X4X 26-32 30-36

If you're choosing between sizes, we recommend sizing DOWN for our Postpartum Recovery Underwear. The fabric is very stretchy and adaptive.

NYSSA SIZE STD. US/UK BAND SIZE STD. US/CAN SHIRT SIZE

XXS/XS 24-26 00-2

XS/S 28-30 2-4

S/M 32-34 4-6

M/L 36-38 6-8

L/XL 38-42 8-12

1X/2X 42-46 12-16

2X/3X 46-50 16-20

3X4X 50-54 20-24

Our Postpartum Bralette fits true to size.

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