There's a cold winter wind blowing, but that's not going to keep your child indoors! Fortunately, the THREE HILLS JACKET provides a reliable barrier to the cold and wind. The STORMLOCK outer fabric isn't just windproof, it's also water repellent and dries out quickly after those pesky winter showers. The THREE HILLS JACKET features our recycled MICROGUARD ECOSPHERE synthetic fibre insulation for warmth you can rely on. The synthetic fibres have the advantage of being very robust, and are unaffected by moisture. Even if the insulating fill gets wet, it loses none of its thermal performance.