Protect and enhance the performance of your fleece and synthetic insulating clothing with this specialist waterproofing wash-in. Designed to add durable water repellency and boost insulation performance, it helps keep you warmer, drier and more comfortable during wet and changeable UK conditions. Restores Water Repellency – Adds a protective finish that helps water bead off fleece and synthetic insulation rather than soaking in.  Enhances Insulation & Performance – Reduces water weight gain and helps synthetic fibres maintain their loft and warmth.  Maintains Breathability – Keeps fabrics breathable so moisture can escape, reducing clamminess and chill.  Easy to Use – Safe for both washing machines and hand application - no specialist equipment needed.  Safe & Eco-Friendly – Water-based, non-flammable and free from PFCs, for responsible gear care.  Ideal For Synthetic Gear – Recommended for Polartec®, Synchilla® and other fleece and synthetic insulated clothing and accessories.  Why We Love It: Fleece and synthetic insulation can trap water between fibres, reducing warmth and increasing weight. PolarProof® revitalises water repellency and helps your mid-layers and insulating pieces perform like new - perfect for winter walks, hikes and staying cosy outdoors.  Available in either a 50ml sachet of a 300ml bottle Size: 50ml Sachet, 300ml Bottle