The Koster 2. 5L Rain Jacket relies on HELLY TECH® Performance to deliver waterproof, breathable, and windproof protection through everyday rain. The 2. 5-layer build stays light enough to pack down into its own pocket, so it travels easily whether it's tossed in a bag or a suitcase. A repairable zipper means one small fix keeps the jacket going instead of ending up in a landfill, and the face fabric runs on at least 50% Recycled Claim Standard fibers, certified by IDFL. What Our Gearhead® Experts Are Saying:"I stuffed this into the front pocket of my daypack on a trip and forgot it was even in there until the sky opened up. It shook out wrinkle-free and blocked the wind on the walk back."