Youth Aurora Bib. The Youth Aurora Bib is designed to keep young riders warm, dry, and comfortable during winter adventures. Featuring a durable 450D polyester shell, Hydraguard® weatherproof technology, and thermal insulation, it delivers reliable protection from the elements while maintaining all-day comfort. Adjustable fit features, reinforced wear areas, and practical storage make it a dependable choice for youth snowmobile and outdoor winter activities. Weather Protection: Hydraguard® weatherproof technology combines windproof and waterproof protection for winter riding conditions. 140-gram thermal insulation provides added warmth in cold environments. Waterproof dry seat insert features 180-gram thermal insulation for enhanced comfort and protection. Construction and Durability: