Period Proof Underwear for Low - Medium Flow

$15 $25

On average a woman would have used 10,400 tampons in their lifetime. A lot of these disposed tampons are likely to be unfriendly to the environment. Our range of period proof underwear are reusable and more eco friendly solution to tampons.

The lining is made out of highly absorbent bamboo viscose fiber, which immediately absorbs any uncomfortable wetness and is eco friendly.

This period proof underwear is recommended to be worn when you have a low - medium flow.

It can absorb up to 15ml of liquid, an equivalent of using 2 tampons.

Our period proof underwear will keep you well protected from any unexpected starts.

Try our period proof underwear for 30 days, if you hate it, we'll give your money back.

Underwear sizing chart for our underwear products on our store.

 Panty Underwear Size Chart


Hips (inch) 32-35 36-37 38-40 40-44 44-48 48-52 52-54 54-56 56-58
Waist (inch) 22-25 25-28 28-30 26-27 29-32 32-36 36-40 40-42 42-45
Hips (cm)
82-90 91-95 96-100 101-110 110-120 120-130 130-140 140-150 150-160
Waist (cm) 58-64 65-71 70-76 74-80 78-83 84-93 94-102 102-107 108-115
US 3 4 5 6 7 8 9 10 11
UK 6 8 10 12 14 16 18 20 22
EU 32 34 36 38 40 42 44 46 48

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. 

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. 

To start a return, you can contact us, use our chat service or email us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. 

Damages and issues 
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items 
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item. 

Unfortunately, we cannot accept returns on sale items or gift cards.

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.

At Reyiko our goal is to offer you the best shipping options, no matter where you live. Every day, we deliver to hundreds of customers across the world, ensuring that we provide the very highest levels of responsiveness to you at all times.

The time frame for order delivery is divided into two core parts:

Processing time

This process comprises of

  • Order verification - all orders are sent to our manufacturers for dispatch within 24 hours after the order is placed.
  • Quality control and shipping - our manufacturers based in UK, Sri Lanka, Vietnam and Japan, will perform extensive quality checks before shipping your order(s). This process will take a total of 24 hours


  • The total order processing time is 2 days

Shipping time

  • This refers to the time it takes for items to be shipped from our warehouse to the destination.
  • International (Canada, Europe and UK) delivery usually takes about 6-8 business days.
  • US orders are shipped by e-packet, which is a US Postal Service product. After processing and leaving the warehouse, items usually take between 4-6 days to arrive at their destination but can take longer if there are notable delays or during holiday periods, when postal service work at max capacity.


Shipping Costs

UK CA USA Europe Alaska and Hawaii U.S. Islands
Free Free Free Free 7 USD 14 USD


Free Shipping to

- UK, Europe, USA and Canada

- U.S. states Alaska and Hawaii if you spend over 60 USD

- U.S. Islands if you spend over 60 USD

If your order doesn’t arrive by the specified shipping timeframe, contact us or chat to us. We will get back to you with your order status within 24 hours.


Customer Reviews

Based on 110 reviews

They work, they do kinda stain even if wash asap. More on the low flow side did have a leak on the side. They are a bit tight around your legs, but probably will buy again.


None of them are comfortable. They are all too small

Cristian Moore
This is

This is my 2nd purchase because the panties work as designed. Fabric is good quality.

Mariela Larson
This is

This is the second time I buy, I ship fast. Such as the description, they perform their function.

Tod Kihn
Delighted with

Delighted with these. I ordered 8xl as sizes have been very small when I ordered before from other sellers. These are wonderful. Soft material, very comfortable.

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