The Brushworks HD luxury shower cap is a step higher than the regular Brushworks luxury shower cap, providing a more memorable experience for the glory of your crown. Here's what makes it special: Substance: Double Layered Satin: This extra layer of premium satin increases the cap's ability to glide on your hair, reducing friction and preventing frizz. Thicker and firmer: Compared to the regular version, the HD cover looks stronger and durable, promising long-lasting use. Design: Stylish and sophisticated: Forget the regular black, HD cover comes in W colors