Would this work on a jacket with "weather-resistant cotton-poly body" which doesn't have much resistant to water at all?

I believe this is made for synthetic fabrics, specifically for Goretex. If your jacket has a significant blend of cotton (>25-30%), I would suggest you try using a fabric wax (for example: Otter Wax). This WILL change the texture and look of your garment, however, it will add waterproofing and durability.

Must this be used by itself? Or can add it to detergent already loaded in the washing machine?

You would use this in place of the detergent. The bottle has instructions but it has a ratio of how much you need per jacket/ items you are waterproofing. Footprint USA is an authorized Amazon dealer for Grangers USA.

Do i always need to first wash it with "performance wash", then only if i need to re-treat the dwr, do i wash it again with the "clothing repel"?

No, if the garment is not dirty. If it is even slightly dirty, wash with Performance Wash then wash with Clothing Repel in two separate wash cycles.

Can I use this with a top load washer? What are the instructions for use with a top load washer?

I personally use a top load washer, and I put two cups in the top load washer. So far it has worked great for me.

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Grangers Clothing Repel/Wash-in Re-Waterproofer Outerwear / 10oz

Product ID: 52495749

Details

Brand
Granger's
Item form
Liquid
Item volume
300
Material Type Free
Solvent free
Material feature
Cruelty Free
Number of items
1

🌿PFC-free, eco-friendly & cruelty-free

💧300ml powerful wash-in reproofer

🧥Restores durable water repellency (DWR)

16904CFA

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Description

💦 Refresh your adventure-ready gear with eco-smart waterproofing!

NEUTRAL CLEAN - No overpowering smells or optical brighteners—just pure performance.
ECO CONSCIOUS FORMULA - PFC-free, bluesign approved, and packaged in 100% recycled bottles.
BREATHE EASY STAY DRY - Maximizes breathability so you stay comfortable on every adventure.
UNIVERSAL COMPATIBILITY - Perfect for Gore-Tex, eVent, FutureLight, and all your technical outerwear.
ALL OVER DURABLE PROTECTION - Revive your gear’s original waterproof shield with every wash.

Granger’s Clothing Repel/Wash-in Re-Waterproofer is a 300ml liquid treatment designed to restore durable water repellency (DWR) to technical and outdoor clothing. Suitable for all breathable waterproof fabrics including Gore-Tex, it maximizes breathability while being eco-friendly, PFC-free, and cruelty-free. Packaged in a 100% recycled bottle, this neutral-smelling reproofer ensures your gear stays protected, comfortable, and ready for any outdoor challenge.

Specifications

ASIN	B00R1FOBDY
Benefits	Water repellent for technical and outdoor clothing
Best Sellers Rank	5,696 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 63 in Waterproofing & Cleaning
Brand Name	Granger's
Cleaning Agent Formulation	Detergent
Container Type	Bottle
Contains Liquid Contents?	Yes
Country of Origin	United Kingdom
Customer Reviews	4.2 4.2 out of 5 stars (821)
Global Trade Identification Number	00799756005031
Included Components	1 bottle
Item Form	Liquid
Item Type Name	Proofer
Item Volume	300 Millilitres
Item Weight	283 g
Manufacturer	Grangers International
Material Features	Cruelty Free, Eco-Friendly
Material Type Free	Solvent free
Model Number	GRF74
Number of Items	1
Part Number	GRF74
Product Warranty	3 Years
Recommended Uses For Product	Waterproofing Outdoor Clothing
Scent	Unscented
Size	300 ml (Pack of 1)
Specific Uses For Product	Outdoor activities
Surface Recommendation	Fabric
UPC	799756005031 799756006502
Unit Count	300.0 millilitre

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16904CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 month ago

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