The XL Adjustable Satin Bonnet will save your style while you sleep.  High quality satin creates a luxurious friction-free barrier for all hair types. Helps reduce breakage, tangles and hair thinning. Add your favorite leave in conditioner to seal in moisture and encourage growth. Accommodates longer hair lengths and the adjustable-fit ties make for a secure hold. OEKO-TEX® Certified:  This certifies that our satin is safe, sustainable, and environmentally friendly.