---
product_id: 37313791
title: "One K Defender Refit Riding Helmet Liner, Black, Medium"
brand: "one k"
price: "578 kr"
currency: DKK
in_stock: true
reviews_count: 2
url: https://www.desertcart.dk/products/37313791-one-k-defender-refit-riding-helmet-liner-black-medium
store_origin: DK
region: Denmark
---

# Moisture-wicking Anti-microbial Flexible sizing One K Defender Refit Riding Helmet Liner, Black, Medium

**Brand:** one k
**Price:** 578 kr
**Availability:** ✅ In Stock

## Summary

> Ride in Style and Comfort! 🚴‍♂️

## Quick Answers

- **What is this?** One K Defender Refit Riding Helmet Liner, Black, Medium by one k
- **How much does it cost?** 578 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/37313791-one-k-defender-refit-riding-helmet-liner-black-medium)

## Best For

- one k enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Design:** Compatible with Medium, Large, and X-Large helmets.
- • **Stay Fresh & Clean:** Washable liner keeps your helmet hygienic and ready for action.
- • **Transform Your Fit:** Easily adjust your helmet size for a perfect fit.
- • **Comfort Meets Function:** Moisture-wicking technology for a dry ride.
- • **Health-Conscious Choice:** Anti-microbial properties for peace of mind.

## Overview

The One K Defender Refit Riding Helmet Liner is a versatile and innovative solution for riders seeking comfort and hygiene. Designed for easy size adjustments, this liner is perfect for growing children, shared helmets, or those who love to switch up their hairstyles. With moisture-wicking and anti-microbial features, it ensures a fresh experience every ride.

## Description

One K Defender Refit Riding Helmet Liner, Black, Medium

## Features

- About this item
- CHANGE SIZE OF HELMET - Ultimate flexible liner for growing children, those who share helmets, or for women who like to change up their hairstyle.     REPLACEMENT - Our liner is easy to wash, moisture-wicking, and anti-microbial so you can always have a clean and dry one ready for next ride.     BASE SHELL - Base shells fit Medium, Large and X-Large helmets.     Use the Medium size helmet with a Small or X-Small liner to change the fit of the Medium helmet into a Small or X-Small.     Use the the Large size helmet with an X-Large liner to change the fit to X-Large; use the X-Large size helmet with the XX-Large liner to change the fit to XX-Large.

## Images

![One K Defender Refit Riding Helmet Liner, Black, Medium - Image 1](https://m.media-amazon.com/images/I/71EGe5yHzKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Love the ability to size your helmet up or down with the liners
  

*by L***S on Reviewed in the United States on January 14, 2020*

First, the removable liner is a must in a hot climate to avoid stinky helmet syndrome... but I now have a M, L & XL liner which effectively resizes your One K helmet to adjust for various ways to wear longer hair.  If my hair is down in a low pony tail, the M takes up some of the space in my L oval helmet, but if I want to wear my hair up under the helmet when it’s really hot & humid, the XL gives the extra hair a place to sit without risking the safety of the helmet.  The L works well with my hair in a higher pony tail with the tail sticking out the back.  Washes up well in a lingerie bag in the washer & air drying.

### ⭐⭐⭐⭐⭐ 







  
  
    Good
  

*by H***H on Reviewed in the United States on December 22, 2021*

Chopped my hair off since I bought my helmet. Had my helmet for a few years so the liner had been worn in a bit. New liner is thicker and made my helmet fit again. Bit pricey but only option.

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**Shop now:** [https://www.desertcart.dk/products/37313791-one-k-defender-refit-riding-helmet-liner-black-medium](https://www.desertcart.dk/products/37313791-one-k-defender-refit-riding-helmet-liner-black-medium)

---

*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-03-07*