However you gave birth, you will need time and care as you recover.

Hospitals recommend using an ice pack to soothe the pain and discomfort associated with childbirth, but we can tell you from personal experience that it’s pretty much impossible to keep those things in place once you start moving around during your daily activities. Our patented FourthWear® Underwear is designed to hold an ice or heat pack anywhere in the body of the garment, so it’s perfect for assisting in recovery following all birth journeys.

FourthWear® Underwear is made from leak-resistant material. They are more absorbent than regular cotton underwear but they do not absorb the quantity of blood one might experience during a heavy cycle. For heavy discharge, we recommend placing a Nyssa Organic Cotton pad on top of the gusset.

Nyssa FourthWear® and VieWear™ Leggings can accommodate any brand of ice pack up to six inches wide. We created our FourthCare™ perineal ice/heat packs with a tapered design to fit perfectly in the perineal area and they also are the designed for covering a cesarean delivery incision area. The VieCare Ice/Heat pack is the first to be shaped to give uterine relief most directly. These can be purchased separately here.

You can insert the ice/heat pack through the pocket opening and place directly inside the specially-widened gusset, where it will stay in place. If you are bleeding and require a pad, simply put the pad on top of the gusset as you usually would.

Yes! Of course if you use an extremely thick pad the effect will be minimized. But you can still feel the ice/heat through a regular sized pad or pantyliner, if needed.

We recommend microwaving for 10 seconds and checking the heat level. If you would like the pack to be warmer, heat for a further 5 seconds and check again, continuing with intervals of 5 seconds until desired temperature. Overheating can melt the pack!

We recommend freezing for 1 hour and checking the cooling level. 

Please wipe with a clean dry cloth.

Unlike mesh, FourthWear® Underwear is non-disposable and is intentionally designed to accompany you through your postpartum recovery and beyond. Most women find that three pairs work well, so that you always have a pair on hand even on laundry days.

Nyssa currently carries sizes XXS/XS, XS/S, S/M, M/L, L/XL, 1X/2X and 2X/3X in FourthWear® Underwear.

Our FourthWear® Bralette is available in size XXS/XS, S/M, L/XL, 1X/2X and 2X/3X. 

We currently carry sizes XS, S, M, L, 1X, 2X and 3X for VieWear™ Underwear.

If you don’t see your size, please e-mail us at Thank you!

We purposefully created FourthWear® Underwear with grouped sizing (XXS/XS, XS/S, S/M, M/L, L/XL, 1X/2X, 2X/3X) to make this decision easier since our bodies continue to change after giving birth. We recommend choosing the size that you’re currently wearing in maternity.

Keep in mind that the top of FourthWear® Underwear is not only super stretchy but can also be folded over to suit your preference.

Check out our Sizing Quiz here!

Please do! They are the perfect gift for anyone preparing for healing below-the-belt. 

You can choose to send an electronic gift card and your friend can choose their own size! Or purchase the product as normal and leave a gift message at checkout. Please sign your gift message, and we will include it in your package- without any receipts.

Machine wash in cool water and dry on low heat. Do not iron, do not bleach. Spot treat stains if needed. 

Once your order ships, you'll receive an email with a tracking link to track your order.

Unfortunately, once the package is shipped then we are bound by the policies and timeline of the carrier. We will do our best to help track down any packages that do not reach you but if your order says in TRANSIT, we would recommend reaching out to your carrier first, as we are not able to receive as much information as the one that has purchased.

Hmmm. It's usually for one of these reasons:

1. You may have an outdated email address on file

2. Or may have opted out of all emails from Nyssa

3. You may have a spam blocker filtering email from us

Please check the email address you have on file in your account and turn off any spam blockers that might be keeping our emails from reaching your main box.

And feel free to hit us up at for any additional order information.

We offer free USPS shipping on orders over $75 and all orders are usually delivered in standard priority mail times to your area.

Orders are processed within 24 hours from when they are received, Monday - Friday. If received after 2p on Friday, the order will be processed the following Monday.

Orders ship from Chicago, USA

We offer international shipping with UPS.

Connect with us at or find us on chat!

We will do our best to respond quickly, and our hours of business operation are Monday - Friday, 9:00 AM to 6:00 PM eastern time. We are a small team but please know that you are a priority!

For everyone's health and safety we cannot accept returns on Ice / Heat Packs, VieVision Mirrors, or Underwear.

We’re happy to accept returns on all other products, in their original and unopened packaging, within 30 days of purchase. Reimbursement will initiate after the return is received.

Please note:  For all U.S. orders, Original shipping and handling charges are not refundable, however, if your item qualifies for return,  the return shipping is on us!

Please contact us at, using our customer service portal or connecting with us via chat.

Due to health and safety reasons, we cannot accept returns on Underwear or Ice / Heat Packs.

We do of course want you to have the perfect fit. Nyssa will accommodate size exchanges for all apparel items including underwear. Please reach out to us through our customer service portal, at, or contact us through chat.

Unfortunately we are not able to offer returns or exchanges on International purchases at this time.

If you are unhappy with your purchase, please contact us at and we will work with you to find a solution.

Nyssa means ‘new beginnings’ in Greek and is derived from the word ‘woman’ in Arabic. Our name captures our desire to support women during times of physical and emotional transformation.