The filling of the light duvet insert 'Harmony' is made of vegetable fibers 60% Kapok fluff and 40% Mulberry silk. Kapok fluff fibers are 8 times lighter than cotton fibers Thin and elastic, Kapok restores its shape well Kapok is high wear resistant, and its temperature-regulating properties are similar to natural silk. The processing does not require the use of chemicals Natural Mulberry silk is the most durable natural filler Eco-friendly, safe, antibacterial Mulberry silk quickly absorbs heat and maintains the same temperature regardless of environmental conditions Composition: 60% kapok 40% silk 250g/m2 Cover composition: 100% cotton 300TC Wash at or below 30°C, do not bleach, do not iron, dry clean, tumble drying (low temperature)