After clicking Get Sample, get a free sample of this Nikwax PolarProof by just answering 5 easy questions correctly, and get a 100ml sachet of PolarProof for free! 

Nikwax has the answer. PolarProof treats the fabric with a flexible water repellent solution that prevents water absorption. It allows moisture to escape from next to the skin, whilst trapping air between the fibers to provide the warmth you need. Clothing remains breathable and you are better protected from the rain. PolarProof also reduces pilling, so fleece stays newer for longer, thereby increasing the usable lifetime of your gear.