Constructed from innovative Araneum fabric, the Magic Jacket weighs only 4.0 ounces and fits in the palm of your hand. Araneum is a 20 denier nylon ripstop fabric that is 33% stronger and only 10% heavier (35 g/m2) than 15 denier fabric. The Magic Jacket is indispensable for light and fast outdoor athletes who cannot afford to carry extra weight, but may find themselves in adverse conditions. Clip it to a harness for long climbs or toss in it in a pack as an emergency piece on aggressive cross-country hikes or ski tours. Because Araneum fabric has no coating (its technical features are gained from the tightness of the weave), the Magic Jacket can be washed time and again without affecting performance. Velcro tab holds rolled up hood to prevent flapping.