Abstract: A foldable, weather-resistant reference guide for wearing on the arm, torso, or leg. The foldable, weather-resistant reference guide is attached to a soft, flexible keeping member that holds the reference guide in a folded configuration. The keeping member is connected to or comprised of at least one flexible strap such as an elastic strap that encircles the arm, torso, or leg. The reference guide itself is made of a synthetic fiber paper for weather-resistance. The reference guide folds-up when not in use and is held in place by the keeping member so that the reference guide does not interfere with any physical activities such as snow skiing. The keeping member and reference guide can be opened, unfolded, refolded, and closed with only one hand, even while wearing bulky gloves. The entire invention is made of flexible materials that are comfortable, durable, and safe to a person wearing the article and participating in a rigorous physical activity. The reference guide is typically a map.