---
product_id: 51224029
title: "Mountain Warehouse Wash N Proof 300ml - 2 in 1 Wash & Proof, Great Performance Wash, Down Proofer Clothing Solution - Best for Wet weather Clothing & Hiking Gear"
brand: "mountain warehouse"
price: "$40.89"
currency: USD
in_stock: true
reviews_count: 13
category: "Mountain Warehouse"
url: https://www.desertcart.us/products/51224029-mountain-warehouse-wash-n-proof-300ml-2-in-1-wash
store_origin: US
region: United States of America
---

# 300ml water repellent power boosts breathability & durability 2-in-1 wash & proof formula Mountain Warehouse Wash N Proof 300ml - 2 in 1 Wash & Proof, Great Performance Wash, Down Proofer Clothing Solution - Best for Wet weather Clothing & Hiking Gear

**Brand:** mountain warehouse
**Price:** $40.89
**Availability:** ✅ In Stock

## Summary

> 🌧️ Stay dry, stay fresh, stay ahead with every wash!

## Quick Answers

- **What is this?** Mountain Warehouse Wash N Proof 300ml - 2 in 1 Wash & Proof, Great Performance Wash, Down Proofer Clothing Solution - Best for Wet weather Clothing & Hiking Gear by mountain warehouse
- **How much does it cost?** $40.89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/51224029-mountain-warehouse-wash-n-proof-300ml-2-in-1-wash)

## Best For

- mountain warehouse enthusiasts

## Why This Product

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

## Key Features

- • **Dirt-Resistant Formula:** Keeps your outdoor apparel looking fresh longer
- • **Enhanced Breathability:** Stay dry inside while weatherproof outside
- • **Dual-Action Wash & Proof:** Cleans and waterproofs in one effortless step
- • **Skin-Friendly & Easy Use:** Gentle on sensitive skin and machine washable
- • **Maximized Water Repellency:** Transforms your gear into a rain-defying fortress

## Overview

Mountain Warehouse Wash N Proof 300ml is a premium 2-in-1 cleaning and waterproofing solution designed for outdoor enthusiasts. It effectively removes dirt while boosting water repellency and breathability of your hiking and wet weather gear, compatible with cotton, leather, and nylon. Trusted by thousands with a 4.4-star rating, it’s the essential care product to keep your jackets and coats performing at their best in any weather.

## Description

Our 2-in-1 Wash’n’Proof solution minimises material dirt while providing maximum water repellency and protection for your clothing, including down - an essential for your trekking gear. Ref: 039706.220503

Review: Great stuff - Always use this to wash any jackets or coats that are waterproof or showerproof - it works so well. Makes showerproof jackets more waterproof - smells of nothing but really easy to use.
Review: good price - good value and great for my grandson as he has skin allergies

## Features

- Long lasting Proofer Solution
- Keeps clean - Minimises dirt build-up
- Water Repellent - Maximises your garment's water repellency
- Breathability - Increases garment's breathability whilst increasing durability too

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005XCGQBC |
| Apparel Fabric Weight Class | Lightweight |
| Best Sellers Rank | 1,286 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 14 in Waterproofing & Cleaning |
| Brand | Mountain Warehouse |
| Compatible Material | Cotton, Leather, Nylon |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,125) |
| Garment Size Country | Great Britain |
| Included Components | Wash'n'Proof solution, Proofer Solution |
| Manufacturer | Mountain Warehouse |
| Manufacturer part number | 013931035001 |
| Model number | 013931035001 |
| Product Care Instructions | Machine washable |
| Unit Count | 1.0 count |
| material-type | Fluoropolymer |

## Images

![Mountain Warehouse Wash N Proof 300ml - 2 in 1 Wash & Proof, Great Performance Wash, Down Proofer Clothing Solution - Best for Wet weather Clothing & Hiking Gear - Image 1](https://m.media-amazon.com/images/I/71BWgQaDBpL.jpg)

## Questions & Answers

**Q: I need to make a fleece and jumper waterproof (long story). Will this product work on clothing not designed to be outerwear/waterproof?**
A: Nothing will make either of those waterproof

**Q: Does this work on walking boots/ shoes?**
A: I use a shoe proofer spray-as I don't wash walking shoes.
Also nothing in its features that indicate you could use it for shoes/ boots

**Q: How much do i use  for garment  size like the Freezestyle Ski Jacket?**
A: According to the instructions you should use 2 measures per garment.  However I did this with only one jacket per wash and it wasn't water proof so I repeated the process with 3 measures and tumble dried, and ironed (on appropriate settings plus the coats laundry label said to tumble dry and iron).  One of my coats is great and worked well however another I washed following the same process and it is not as good.  You have to decide if it is worth doing.  Hope this helps

**Q: Is this heat activated?**
A: The instructions say follow garment care directions.wash 30-40degree wash & rinse cycle then  tumble dry  -for best proofing- can also dry in airing cupboard or ironing. So it does sound as though heat is needed for best results.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great stuff
*by K***Y on 14 November 2025*

Always use this to wash any jackets or coats that are waterproof or showerproof - it works so well. Makes showerproof jackets more waterproof - smells of nothing but really easy to use.

### ⭐⭐⭐⭐⭐ good price
*by .***N on 7 March 2026*

good value and great for my grandson as he has skin allergies

### ⭐⭐⭐⭐ Ok product
*by F***C on 27 February 2026*

I have used this product before and it seems ok.I would not say it works 100% as my raincoat still lets through the rain but saying that it has rained a lot so far.

## Frequently Bought Together

- Mountain Warehouse Wash N Proof 300ml
- JAN & JUL Waterproof Fleece Lined Snow and Rain Pants for Toddlers and Kids

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*