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Based on 358 reviews
78%
(280)
6%
(23)
4%
(13)
5%
(19)
6%
(23)
A comforting heat bag that would be 5 stars with a few design improvements

I’ve used my Kosi for three weeks now, following my first laparoscopic excision surgery last month. It is great that it is hands free and provides 360 degree heat to the stomach and back, which provides comforting relief. I believe another section of Velcro needs to be added to the Kosi to prevent the significant piling of material, caused by the Velcro catching and pulling on itself. It also catches on skin or other material which could be prevented if a corresponding section of Velcro was added to the design. The bags are quite heavy and at first was too much weight to put on my stomach immediately following the surgery (especially when the bloating from the gas was at its worst). The bag is also already very stretched and out of shape (after not even 3 weeks of use). Overall. I think it is convenient and very comforting, but lacks the quality I was expecting of a heat bag at this price point

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Kosi - Pink
Pauline
Love love love

I have Adenomyosis and endo also. I get to the point that I'm in so much pain I can't move.

I have tired many other heat packs they would fall off or the wheat would go to the one side and you could never find the prefect size. UNTIL NOW. KOSI, is amazing... I am to heat it up and get around slowly. And wraps around my body providing relief and comfort in one.

Thank you. 😊

Hi Pauline, thank you so much for your beautiful message, it means the world to us. We know how intense that kind of pain can be, and we’re so happy Kosi has been able to bring you real comfort and support. Sending you lots of warmth! <3

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Snuggle - Pink
Denise Miller
Disappointed

At first the kosi was good
But the more I use it the more the stuff inside seems to be disappearing maybe from
The heat of the microwave
It’s become lumpy and I am not liking it.
It’s not as much as an all over coverage as I thought it would be

Hi Denise, thank you for your feedback, we’re really sorry to hear your experience has changed over time. That’s definitely not what we want for you. We’d love to take a closer look and help figure out your concern. If you haven’t already, please feel free to reach out to us at info@kosi.au with your order details. Our team would be happy to guide you through the next steps and see how we can help. <3

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New Moon Kit Bundle
Ruby
Heat pack bursted in microwave in wet towel

Heatpack exploded thru the wet towel and put a hole causing the inside to spill everywhere 😩😩
$100 down the drain

Hi Ruby, we’re really sorry to hear this happened and that’s definitely not the experience we want for you. We’d love the chance to take a closer look and help resolve this for you. If you haven’t already, please reach out to us at info@kosi.au, so we can guide you through the next steps. Also just a quick note that our heat packs should be heated with a damp towel (not wet), as too much moisture can affect the fabric and heating process. But don’t worry, our team is here and happy to assist you further.

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Kosi - Pink
Jasmine Christian
Super convenient

I use this heat pack nearly all day everyday. I have Endometriosis, adenomyosis and PCOS and have chronic pelvic and back pain from it. This heat pack allows me to still get on with my day (having 3 kids) whilst getting some relief from my pain. I love the fact it is 360° meaning everywhere gets heated up and I don't have to decide between my pelvis or my back. The only downside is that I feel the fabric is a little thin and I worry it'll break. Otherwise I absolutely love it! Been a huge game changer for me!

Hi Jasmine, thank you so much for sharing your experience and we’re so glad Kosi has been a game changer in helping you manage pain.
As for the fabric, we’ve designed it to be soft yet durable, but if you ever have concerns or need support, our team is always here to help. Feel free to email us at info@kosi.au so we can take a look and assist you if needed. <3

Bought it for my girlfriend who suffers from endometriosis. She absolutely loves it, especially as it gives her the relief she needs when the pain becomes too much.

Hi Ash, that’s so lovely to hear, thank you for choosing Kosi for your girlfriend! We’re really glad it’s bringing her the relief she needs during those tougher moments. Sending both of you lots of warmth and love. <3

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Gift Note
Aaron Hewson
Terrible

Wont heat up at all even after reheating multiple times

Hi Aaron, we appreciate you taking the time to share your thoughts. Kosi is designed to give around 20–30 minutes of gentle, wearable warmth, but every microwave is a little different, and heating results can vary. We’d love to help troubleshoot with you to make sure you're getting the best out of your wrap! Feel free to reach out to us at info@kosi.au, our friendly team is always here to help <3

Doesn’t get warm enough or retain heat well

I’m slightly disappointed with the heat pack as it doesn’t get hot enough, even when following the heating instructions carefully. It’s like a mild warmth, that doesn’t last very long compared to other heat packs. The only thing I really like is that it is comfortable and easy to wear. But I wish I knew before I bought it, that it wouldn’t be warm enough or last very long.

Hi Layla, we appreciate you taking the time to share your thoughts. Kosi is designed to give around 20–30 minutes of gentle, wearable warmth, but every microwave is a little different, and heating results can vary. We’d love to help troubleshoot with you to make sure you're getting the best out of your wrap! Feel free to reach out to us at info@kosi.au, our friendly team is always here to help <3

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Snuggle - Pink
Caitilin Jones
My daughter is loving this - she has scoliosis

Easy to warm up. perfect shape. get one! Great if you are on a screen a lot too!

Hi Caitilin, we’re so happy to hear your daughter is loving her Kosi. Thank you for sharing this! <3

Jessica

Product is good, like the fact it wraps around you and can still move and do things. Also comes with easy to understand instructions for heating.

Hi Jessica, so glad to hear you’re enjoying your Kosi! We love that it’s giving you the freedom to move while staying comfy <3

Not bad!

It’s a good heat pack! I got it because I get both lower back pain and cramps and was sick of using 2 heat packs to relieve the pain and it was uncomfortable too. So the kosi heat pack is great if you have the same sort of problem. The only thing that I have to say about it is that it cools down super quickly I find myself having to keep reheating it every 10 minutes or so, whereas other heat packs usually stay warmer for longer. I do think it’s a bit pricey for what you get, but I don’t regret buying it I use it all the time during my period.

Hi lovely, thank you so much for taking the time to give us a review. Everyone has differing skin sensitivity and heat perception. Depending on the strength of your microwave and your perception of heat, Kosi will retain a comfortable heat for 20-30 minutes. That said, every microwave is a little different, and things like heating time and towel dampness can really make a difference. If you’re open to it, we’d love to help troubleshoot your heating routine so you can get the best results. Feel free to reach out to us at info@kosi.au, we’re always here to help!

Only lasted 1 month

Lasted 1 month until it broke so disappointed

Hi Danielle, we’re really sorry to hear this happened and that’s definitely not the experience we want for anyone. We take quality concerns seriously, and we’d love the chance to look into this further for you. Kindly reach out to us at info@kosi.au with your order details so we can help resolve this for you.

Brought this for my partner and she loves its,
Fast and easy delivery

That’s so lovely to hear! We’re so glad she’s loving her Kosi and happy we could get it to you quickly <3

Quick delivery and great product, so comfortable.

Good shiz

Love hearing that and glad you’re enjoying your Kosi! <3

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Kosi Ziggle - Pink
Charlie

Oh my gosh. Game changer! From cramps and lower back aches to yay I can move around, play with my dog and cook without being crippled that time of month. So comfy, sits in the perfect spot. Takes a lot longer in my microwave then instructions say but once its heated its amazinggg - worth the wait. Thankyou

I absolutely love mine it has been a game changer. I also got one for my mum and she absolutely loves her too

Hi lovely, we’re so happy to hear it’s been a game changer for both you and your mum! Thank you for sharing the Kosi love <3

Great in theory but doesn’t work

This product is a great idea, but it just doesn’t work. I followed the heating instructions carefully, but on the second use it got a burn mark. Also because of its size (and I ordered a small one) it is very hard to heat in a microwave despite turning frequently. It doesn’t get hot enough and loses its heat very quickly.

The kosi is a great concept and super soft. I find it doesn’t hold its heat for very long and requires frequent reheating. Bigger beans possibly needed.

Hi lovely, thank you so much for your feedback. We hear you on the heat retention, and we’d love to help troubleshoot your heating routine to see if we can improve your experience. Feel free to reach out to us at info@kosi.au, our team is always here to support you! <3

So comforting!

I've been telling people this should be a thing for years. Thank goodness somebody invented it! It is perfect. It doesn't stay very hot for very long and can take a bit of time to heat up. However, even when the heat decreases, the pressure it provides is excellent too. Great product!

Hi Fatima, we’re so happy to hear you’re loving the comfort and support Kosi brings. We’d love to help troubleshoot so you can get the best experience, feel free to reach out to us at info@kosi.au and our team is happy to help!

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Snuggle - Pink
Willow Mckean
Extremely Comfortable

Everything has been perfect, arrival time was quicker than I was expecting, super comfy, super soft has even been making me sleep a bit better!

Hi Willow, we’re so happy to hear this! That’s exactly what we love to hear and thank you for sharing your experience! <3

Nice idea but doesn’t work

I was really looking forward to this but it is very disappointing. It takes at least 6 minutes in our microwave to heat up (and you have to take it out every couple of mins to adjust how it is folded). It comes out of the microwave too hot, and once it is cool enough to wear only lasts about 15 mins. Those few minutes when it works are lovely. I’ve compared it to my other wheat bags and they last much longer. Wish I’d read the reviews before buying, and realised that they don’t do refunds.

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Snuggle - Pink
Anonymous

It’s good

Hi lovely, thank you so much! If you ever need any assistance to make it an even better experience, feel free to reach out to us at info@kosi.au, we’re always happy to help! <3

Heat pack

Lovely product

Hi Belinda, thank you so much! <3

Great invention!

Love love love!
I wish I knew about this company ages ago but so glad i finally habe now. the relief from a 360degree heat pack is amazing as my pain is lower abdominal amd lower back at the same time. Also the shoulder one is beneficial also I find as I disnt know I even needed it until I tried. The only thing I would only fault is I wish they stayed heated for longer. They packs seem to get cool fairly quickly but apart from that, it's an amazing product.

Hi lovely, we’re so happy to hear Kosi has been bringing you relief! Also every microwave can be a little different, so if you’d like, we can help you get the most out of your wrap with a few heating tips. Feel free to reach out at info@kosi.au, we’d love to support you!