Kapok down refers to insulation material derived from the fibers of the kapok tree (Ceiba pentandra). Kapok fibers are lightweight, soft, and buoyant, making them an alternative to traditional down for use in outdoor gear such as sleeping bags and jackets. Kapok down is valued for its natural water resistance and hypoallergenic properties. It is often sought after by those looking for sustainable and plant-based alternatives to animal-derived insulation. Kapok down retains its loft and insulation even when damp, providing outdoor enthusiasts with a breathable and eco-friendly option for insulation in various outdoor products.