Free shipping and returns on Living proof® Flex Hairspray at Nordstrom.com. What it is: A multitasking medium-hold hairspray that can be used on damp or dry hair to set, style and finish, leaving hair touchable and brushable.Who it's for: All hair types.What it does: It's powered by the brand's Flexible Web Technology, which helps hold hair in place at any step during the styling process. This brushable, layerable, reworkable spray is safe for color- or chemically treated hair.How to use…