This product helps: 
 
Rejuvenates the water repellency of tired, neutral waxed cotton clothing
Prolongs the life of your gear and optimizes performance in wet weather
Replaces water repellent finishes
Overcomes the problems of gear 'wetting-out'
Rejuvenates the water repellency of tired, neutral waxed cotton clothing
 
300ml 
 
Be sure to clean your wax cotton coat before applying Nikwax. 
 
Washing Instructions for Wax Coats: 
 
DO wash by hand, using cold water and a cloth to wipe off any marks. ... DON'T wash your wax jacket in the washing machine as even the gentlest of cycles could damage the wax coating. DON’T tumble dry your wax jacket as the heat can remove the all-important waterproofing wax and oils.
 
How do you use Nikwax Wax Cotton Proof?
 
How to apply:
Protect working surface and lay fastened wet jacket on a flat clean surface.
Spray Nikwax® Wax Cotton Proof™ generously onto outer surface and along seams.
Spread evenly with a damp sponge or clean rag, rubbing evenly into fabric.
Check carefully to ensure no areas have been missed.
Hang and let dry for 24-48 hours.