UNIQUE SUPERIOR ADJUSTABLE SYSTEM - There is a common problem that the sleep bonnet easy to slip off or the hair cap cannot fit the head properly. To have adjustable and stretchable head size for a comfortable wear is a necessary. Our size adjust system is not like most similar hat just adds an elastic strap for adjustment, we have upgraded a hidden elastic strap and added a side-release buckle which can provide 0.65-inch width range to snug most head size for comfortable wear and stay on. | PREMIUM QUALITY FABRIC & SAFE DYING - Outer is 95% bamboo viscose and 5% spandex, lining with 100% silky satin. Bamboo viscose is breathable & will not easily absorb the moisture from your hair like cotton, that makes bamboo ideal for the outer fabric. We are taking high density silky satin as the lining of our sleep cap which is more comfortable. Strictly complied with dying standard USA Proposition 65, with our hair bonnet beanie, no worry for fading and bleeding problem during your sleep. | KEEP HAIRSTYLE & TIME SAVING - Our satin bonnet sewn closed at the top, soft full-cover silky satin interior lining protects your hair from drying caused by friction between the hair and absorbent materials such as cotton. If you have curly or wavy hair, our hair cover slouchy beanie helps to reduce frizz, tangles and thinning to keep your hair style fresh and frizz free. Wake up with no imprint on your forehead. Saving your time of taking care of your hair in the morning. | VERSATILE APPLICATIONS - The stylish beanie with satin bonnet lined is not only uses as sleep cap, you can wear this to spend your leisure time at home and keep the floor clean without seeing your hair falling on the floor, you will look fashionable when you can wear the slouchy beanie hat to go out, running or as a daily head-wear when hanging around or on windy days. It also performs great when you do cooking and makes great chemo hat for hair loss. | NOTE & CARE INSTRUCTIONS - Please don’t wear this cap with hair conditioner. It will make your pillow wet cause its breathable material. Machine washable in gentle cycle in cold water, lay flat to dry. Hand wash and air drying recommended. Non-chlorine bleach, warm iron.