---
product_id: 518979100
title: "Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable (3 Pack)"
brand: "knix"
price: "$231"
currency: NZD
in_stock: true
reviews_count: 13
category: "Knix"
url: https://www.desertcart.nz/products/518979100-super-leakproof-bikini-period-underwear-for-women-machine-washable-reusable
store_origin: NZ
region: New Zealand
---

# Absorbs 8 tsp liquid 9" extended gusset coverage Reusable & machine washable Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable (3 Pack)

**Brand:** knix
**Price:** $231
**Availability:** ✅ In Stock

## Summary

> 🩲 Leakproof, sustainable, and stylish—period protection that keeps you unstoppable!

## Quick Answers

- **What is this?** Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable (3 Pack) by knix
- **How much does it cost?** $231 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/518979100-super-leakproof-bikini-period-underwear-for-women-machine-washable-reusable)

## Best For

- knix enthusiasts

## Why This Product

- Trusted knix brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sustainable & Eco-Chic:** Ditch disposables and embrace a washable, reusable solution that’s kind to your body and the planet.
- • **Comfort That Grows With You:** Soft, breathable fabric that feels snug at first but relaxes perfectly with wear and wash cycles.
- • **Leakproof Confidence All Day:** Absorbs up to 8 teaspoons of liquid for reliable protection during heavy flow or incontinence.
- • **Effortless Care & Convenience:** Machine washable with included wash bag—ready to keep up with your busy, modern lifestyle.
- • **Extended Gusset for Ultimate Coverage:** 9-inch gusset design prevents leaks from blood, sweat, or urine—no more embarrassing moments.

## Overview

The KNIX Super Leakproof Bikini is a 3-pack of mid-rise period underwear designed with advanced leakproof technology absorbing up to 8 teaspoons of liquid. Featuring a 9-inch extended gusset for superior coverage, these breathable, soft panties combine nylon, spandex, and moisture-wicking modal fabrics with a waterproof membrane. Machine washable and reusable, they offer a sustainable alternative to disposable period products, delivering comfort and confidence for women managing heavy flow or incontinence.

## Description

Buy KNIX Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable - Black, Large (3 Pack) and other Bikinis at desertcart.com. Our wide selection is elegible for free shipping and free returns.

Review: Absorbant and comfortable - I use these for my heavy periods and they are amazing. Free bleeding isn't for everyone but it helps tremendously with cramping relief. Others were stiff and tight around my legs. These are very soft, comfortable, and breatheable. They feel more like a cross between underwear and a bathsuit, but seamlessly protect you. They wash easily and quickly. I have 3 and my only issue is I use 3 a day so I'm washing alot. Will be purchasing more once on sales and whatnot. Seriously amazing for my body. I've used tampons since I was 9 and never tried anything else. I can't do cups. This is the best, natural alternative. Highly recommend for all women!!!! Also no granny butt in these!
Review: Great - Worked

## Features

- Included Items: 3 Super Leakproof Bikini and a Wash bag
- Super Leakproof: Knix period underwear features leakproof technology that absorbs the equivalent of 8 tsp worth of liquid
- Extended Gusset: This period or incontinence underwear has a 9" gusset that stops blood, pee, or sweat from leaking through
- Sustainable & Machine Washable Period Panty: Ditch disposable tampons, pads, and incontinence products for good; simply toss your period underwear in the wash after use and wear them again and again
- Comfortable Fit: These period panties have extra coverage through the hip and bum; the fabric is designed to feel snug at first but relax with wash and wear for a perfect fit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BK2XKK1P |
| ASIN  | B0CKL5YB8V |
| Age Range Description | Adult |
| Best Sellers Rank | #257,839 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #29 in Women's Period Panties |
| Bottom Style | Bikini |
| Brand Name | KNIX |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (203) |
| Date First Available  | December 19, 2022 |
| Department  | womens |
| Fabric Type | Main Body 70% Nylon 30% Spandex Gusset Top Layer (Moisture Wicking + Anti-Odor): 84% Modal, 8% seaweed, 8% spandex Gusset 2nd Layer (Absorbent Fabric): 100% Polyester Gusset 3rd Layer Fresh Fix Technology Gusset 4th Layer (Waterproof Membrane): Polyurethane Film |
| Item Type Name | Bikini Style Underwear |
| Item Weight | 5.64 ounces |
| Manufacturer | KNIX |
| Material Type | Nylon |
| Pattern | Solid |
| Product Care Instructions | Machine Wash |
| Rise Style | Mid |
| Size | Large |
| Style Name | Knix Super Leakproof Bikini - 3pk |
| Subject Character | Sexy |
| UPC | 628199130218 |
| Unit Count | 3 Count |

## Images

![Super Leakproof Bikini - Period Underwear for Women - Machine Washable, Reusable (3 Pack) - Image 1](https://m.media-amazon.com/images/I/61bqNBu-SJL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absorbant and comfortable
*by A***H on July 6, 2024*

I use these for my heavy periods and they are amazing. Free bleeding isn't for everyone but it helps tremendously with cramping relief. Others were stiff and tight around my legs. These are very soft, comfortable, and breatheable. They feel more like a cross between underwear and a bathsuit, but seamlessly protect you. They wash easily and quickly. I have 3 and my only issue is I use 3 a day so I'm washing alot. Will be purchasing more once on sales and whatnot. Seriously amazing for my body. I've used tampons since I was 9 and never tried anything else. I can't do cups. This is the best, natural alternative. Highly recommend for all women!!!! Also no granny butt in these!

### ⭐⭐⭐⭐⭐ Great
*by A***R on January 1, 2026*

Worked

### ⭐⭐⭐⭐⭐ Just what I needed
*by A***S on May 30, 2024*

Got these a few weeks postpartum as wearing only pads was very irritating. These work well and are just what I needed. Soft, comfortable, and I’m not worried about leaking. I know I’ll get some use out of them once my period comes back as well.

## Frequently Bought Together

- KNIX Super Leakproof Bikini - Mid Rise Bikini Bottom Period Underwear with Stretchy Fabric -Overnight and Everyday Underwear
- KNIX Super Leakproof Bikini - Period Underwear for Women
- KNIX Super Leakproof No-Show Boyshort, Leakproof Underwear, Period Underwear for Women, Machine Washable, Reusable

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**Shop now:** [https://www.desertcart.nz/products/518979100-super-leakproof-bikini-period-underwear-for-women-machine-washable-reusable](https://www.desertcart.nz/products/518979100-super-leakproof-bikini-period-underwear-for-women-machine-washable-reusable)

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-18*