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Nyssa FourthWear Postpartum Recovery includes one pair of dual-layered postpartum underwear and one contoured Between Legs Perineal Ice and Heat Therapy Pack in a reusable pouch. Designed for vaginal births or cesarean deliveries, the underwear features a 360° pocket to hold ice or heat where recovering bodies need it most. FSA HSA eligible.
Key Features
- Includes one pair of FourthWear Postpartum Recovery Underwear
- Includes one contoured Between Legs Perineal Ice and Heat Therapy Pack
- Comes in a lovely reusable pouch
- Dual-layered postpartum underwear with 360° pocket design
- Pocket holds ice or heat between the legs and at C section incision scar
- Designed in collaboration with OB GYNs Doulas Midwives and Pelvic Floor Therapists
- Suitable for vaginal births or cesarean deliveries
- FSA HSA eligible
Details
- Brand: Nyssa
- Product type: Postpartum Recovery
- Contents: One pair of FourthWear Postpartum Recovery Underwear and one Between Legs Perineal Ice and Heat Therapy Pack in a reusable pouch
- Design details: Dual layered underwear with 360° pocket to hold ice or heat
- Use cases: Designed for vaginal births or cesarean deliveries
- Eligibility: FSA HSA eligible
- Development: Designed in collaboration with an Innovation Advisory Board of OB GYNs Doulas Midwives and Pelvic Floor Therapists
Who It Is For
For new moms recovering from childbirth. Designed to support recovery after vaginal births or cesarean deliveries.
Frequently Asked Questions
What is included in this postpartum recovery set?
The set includes one pair of FourthWear Postpartum Recovery Underwear and one contoured Between Legs Perineal Ice and Heat Therapy Pack in a reusable pouch.
Is this product suitable after a cesarean delivery?
Yes. It is designed for vaginal births or cesarean deliveries.
Can I use ice or heat with the underwear?
Yes. The underwear has a 360° pocket design to securely hold ice or heat between the legs and at the site of a C section incision scar.
Who helped design the underwear?
The underwear was designed in collaboration with an Innovation Advisory Board of OB GYNs Doulas Midwives and Pelvic Floor Therapists.
Is this FSA or HSA eligible?
Yes. The product is FSA HSA eligible.
All orders are processed and shipped within a maximum of 2 to 5 business days. Please note that this is an estimated timeline and does not constitute a guarantee, as national holidays and other external factors may impact final delivery and shipping times.
🚚 Free Shipping and Discount Clarification
For qualifying orders of $100 or more, the maximum available discount applied to your order is $30.


The tapered, contoured pack fits into the front pocket to sit exactly where you need relief. Use cold for swelling and heat for sore muscles or tension.

A high rise provides tummy and incision coverage while holding the pack in place for hands free relief. The dual layer pocket keeps the pack stable during movement.

The 360 degree pocket places therapy between the legs and around the back to soothe perineal pain, hemorrhoids, or C section incision areas. Designed with input from OB GYNs and pelvic floor specialists.
Pick the underwear and therapy approach that matches your birth, symptoms, and daily needs.
- Match your birth: Choose underwear that accommodates a between-legs pack whether you had a vaginal birth or a C section incision.
- Check the fit: Use the size chart image to find your best high waist fit, aim for snug support without pinching.
- Decide therapy type: Cold is typically used for swelling and immediate pain, heat for muscle soreness and tension; follow your provider's guidance.
- Plan wear time: Look for a design that holds the pack securely so you can rest and care for baby hands free.
- Care and cleaning: Remove the therapy pack before laundering and follow the garment care label for washing instructions.
How do I use the between-legs ice and heat pack?
Insert the tapered end pointing down to soothe the perineal area, or insert the wider end first to push through to the seat for hemorrhoid or tailbone relief.
Can I use this after a C section?
Yes, the underwear is designed to place therapy at a C section incision scar and around the back, but check with your provider before applying heat directly to a fresh incision.
What size should I order?
Refer to the included size chart image for standard US sizes; choose the size that gives a snug, supportive high waist without digging in.
Is this product FSA or HSA eligible?
Yes, this postpartum recovery set is FSA and HSA eligible where account rules allow.
How do I wash and care for the set?
Remove the therapy pack before washing and follow the garment care label; spot clean the pack with a damp cloth as needed.
What are your shipping and return policies?
We ship from a US warehouse, offer free US shipping on orders over $100, and accept returns within 30 days; human customer support is available if you need help.
G 5.0 on Google · 9 reviews · Verified buyer reviews from our store
"We got floaties for our toddler and they are great! She loves swimming and these are so nice to have. Company is owned by a husband and wife and they are kind and…"
"I purchased a bat costume for my daughter with Moogco and we absolutely loved it! We used it for our daughters first Santa photos. They are a small business worth…"
"Ordered from here and they sent my items fast! Great quality!"
"High quality toys. Customer service is helpful and responsive. Will buy from this store again!"
"All of my dealings with them have been great!"
"Wonderful company to work with! Great product"
"great prices and fast shipping!"
"Wonderful products"
"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"I was lucky to find this pad for my grandson’s bassinet. I like how it is all natural snd organic. Just make sure to buy it a little bigger because it shrinks after washing. Also give ample time…"
"These helped at first but it seemed like the edges dug into my skin making it irritated (might have needed the larger ones). Once my milk came in more, milk would spill everywhere. I found that milk…"
"Perfect. Great price and my little one very opposed to training has only had accidents in the last week. My daughter is 2yrs old, 27 lbs and the Medium is perfect. She has room in them but the arent…"
"Initially, I was skeptical of using it, but when my doc referred it to me for my cracked nipple, it worked like a charm. I did not want to put any balm or lotion over my nipple as I did not wanted…"
"Amazing tool for breastfeeding! These protect sensitive, chapped or cracked nipples like little shields. No more sticking to clothing/bras and wincing when anything bumps into my chest. I've been…"
"I cant belive they heal hours within you put them on. Totally a must while breastfeeding. Such a good quality"
"I used these for the first four weeks after baby came. It was during that phase where baby was so small he didn’t have a great latch and so I was getting sore nipples. This was great for protecting…"
"Only paci my breast feed three week old has accepted so far🙌🏼"
"Worked great and would definitely use again. The only thing is sizing can be tricky. I would’ve gotten a size bigger and I’d consider my size to be on the smaller side. If you’re not sure, just size…"
"I wore these for the first two months and they truly saved my breastfeeding journey - worked exactly how I expected. They gave instant relief. I basically wore them day and night for the first 6…"
"Love these , I bought due to damage from pumping . One week with creams and balms didn’t do much but two days with these and I’m almost healed !"
"LIFE. SAVER. Bought this the first week I started nursing my son and had the WORST cracked nipples. These solved the issues OVERNIGHT!"
"We got floaties for our toddler and they are great! She loves swimming and these are so nice to have. Company is owned by a husband and wife and they are kind and…"
"I purchased a bat costume for my daughter with Moogco and we absolutely loved it! We used it for our daughters first Santa photos. They are a small business worth…"
"Ordered from here and they sent my items fast! Great quality!"
"High quality toys. Customer service is helpful and responsive. Will buy from this store again!"
"All of my dealings with them have been great!"
"Wonderful company to work with! Great product"
"great prices and fast shipping!"
"Wonderful products"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"
"Did the job, kept me more comfortable the first couple weeks postpartum as breastfeeding was established. Next time I would go for the design that has perforated holes for airflow."
"As a breastfeeding mom I truly couldn’t recommend these more. They literally SAVED MY LIFE in the newborn stage and then saved me again when teething started. They’re easy to use, easy to clean and…"
"This is a great item to have for breastfeeding mommas. It feels very cooling and refreshing after breastfeeding and makes wearing nursing bras very comfortable since the fabric is not rubbing on your…"
"These cups protect and help heal sore nipples so quickly. Comfortable under a bra, easy to clean, and worth the investment for breastfeeding. Stats: 5’3”, 140 lbs, 8 weeks postpartum & nursing"
"Great value for the price compared to name brand silverettes. I only really used them for maybe 2-3 weeks, so I’m glad I didn’t spend the extra money when these got the job done just as well"
"These are perfect for breastfeeding. They help keep any ointment or lanolin from getting on your clothes and smooth for immediate relief of cracks or nipple soreness in the first few weeks."
"Had a cracked nipple, added some organic ointment and put this over it, healed in 2 days! Recommend it 100%"
"These are great for nursing in the first few weeks when there’s soreness and breakdown. Would recommend!"
"These were wonderful for me postpartum while learning to breastfeed. Highly recommend. They are easy to clean & very functional."
"It saved my nipples multiple times. They’re super light. Quality is good, they do bend for no reason lol overall a good product."
"These were great in the beginning helped me so much."
"Any first time mama BUY THIS PRODUCT!!!! I cannot recommend and rave about this enough. They HELPED so so much! I wore them all the time when my nipples felt dry, cracked, and just hurt. Those first…"