Designed for both style and care, these bonnets protect your hair while you sleep, preserving smoothness, shine, and moisture overnight. Each bonnet features a 19 momme Mulberry silk lining with a soft, breathable outer layer, measuring 22” in circumference and 8” from top to bottom when flat. Also available in other thoughtfully paired sets - Forest Green & Ocean Green, Teal & Navy Blue or Two black bonnets - they brighten everyday ritual into the realm of quite luxury. We always recommend hand washing our silk products, but it can also be machine washed at 30 degrees celsius or lower on a delicate cycle. For small items, use a fine mesh washing bag, and always use washing liquid and fabric conditioner made specifically for silk, to maintain its beautiful lustre. Make sure to line dry the silk bedding as it is not suitable for tumble drying. Silk 100%