CHI Enviro Flex Hold Hair Spray Firm Hold Cationic Hydration Interlink lets you create all your finishing and hard to hold styles to lock in total control without added weight. CHI Enviro Flex Hold Hair Spray Natual Hold is a style hold memory, fast drying hair spray. Contains an innovative new technology that offers true versatility. It provides incredible shine. Enriched with silk proteins and natural herbs. Contains less than 55% VOC to help protect the environment.