The Vidal Sassoon Waves Hairspray provides Flexible Hold for Salon Inspired Waves and soft curl definition with 24 Hour humidity resistance. Finishing Spray for long lasting frizz control for wavy to curly hair. Flexible Hold Finishing Spray for Long Lasting Frizz Control for Wavy to Curly Hair Our Sassoon Experts Have Designed This Wave Enhancing Spray to Help Keep Hair Full of Perfect Waves Provides Curvaceous Curls with Shine and a Long Lasting Hold