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Postpartum recovery just got a whole lot better — now in Mocha Mousse.
Meet the underwear that was built for exactly this moment. Nyssa's FourthWear Postpartum Recovery Underwear is the best-selling, OB-GYN recommended postpartum essential designed to support your body through vaginal delivery recovery and c-section healing — now available in our beautiful new Mocha Mousse color.
At the core of FourthWear is a patented dual-layer, 360° pocket system that holds ice or heat therapy — doctor's #1 recommended postpartum regimen — securely in place across all three zones where recovering bodies need it most:
- Between the legs for targeted perineal pain relief
- At the c-section incision site for scar healing and comfort
- Across the lower back for postpartum back pain relief
The pocket is also designed to hold a pad on the inside of the underwear, so you can manage postpartum bleeding and apply cold or heat therapy at the same time — completely hands-free. No adjusting, no juggling, just recovery.
Crafted from super-soft, adaptive compression fabric that gently hugs the belly and moves with your changing postpartum figure, FourthWear stays smooth and seamless under clothing from your very first postpartum day through every stage of healing. Developed in collaboration with Nyssa's Innovation Advisory Board of women's wellbeing professionals — OB-GYNs, Doulas, Midwives, and Pelvic Floor Therapists — because your recovery deserves expert-backed design.
✔ FSA/HSA eligible
✔ Designed with OB-GYNs, Doulas, Midwives & Pelvic Floor Therapists
✔ Perineal recovery · C-section healing · Postpartum back pain · Postpartum bleeding support — all in one
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 patented dual layer pocket holds cold or warm packs in place so you can treat pain without holding anything. Use the same pocket to keep a pad secure for bleeding management, all at once and hands free.
Super soft fabric gently hugs your belly and moves with your changing postpartum shape for comfort and support. The smooth finish stays invisible under clothing from day one through recovery.
Pockets are positioned for perineal relief, c section incision comfort, and lower back pain support, so therapy hits the places you need. The design keeps pads and packs aligned for safer, consistent care.
Choose underwear that matches your delivery, comfort needs, and recovery plan for a smoother first weeks postpartum.
- Consider Delivery Type: If you had a c section, look for coverage and positioned support near the incision. For vaginal delivery, prioritize perineal pocket access.
- Think Therapy First: If you plan to use ice or heat, pick underwear with secure pockets sized for therapy packs and pads.
- Fit and Compression: Choose a size that offers gentle compression without digging in, so it supports healing while staying comfortable.
- Coverage and Seamlines: Higher waists and smooth seams reduce rubbing on incisions and stay discreet under clothing.
- Care and Returns: Check wash instructions and return windows so you can exchange sizes quickly if needed.
Can I use this after a c section?
Yes. The underwear includes a pocket positioned to sit over a c section incision for gentle support and to hold cold or warm packs as directed by your provider.
Can I wear a pad and a cold pack at the same time?
Yes. The pocket is designed to hold a pad on the inside and a therapy pack over it, so you can manage bleeding and apply cold or heat at once.
How do I pick the right size?
Pick the size that fits your current waist and hip measurements for gentle compression, not tight squeezing. If between sizes, choose the larger for comfort during swelling.
What are the washing and care instructions?
Machine wash cold on a gentle cycle and lay flat to dry to preserve stretch and pocket shape. Avoid bleach and high heat.
How does shipping and returns work?
We ship from a US warehouse, and US orders over $100 qualify for free shipping. We offer 30 day returns and human customer support if you need help with sizing or exchanges.
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Sweet Dream Drops:Gift
"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!"
"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…"