- Super hold finishing spray. Kenra Volume Spray 25 provides the maximum amount of volume and hold possible. It leaves hair looking natural and shiny while imparting the strength and volume necessary to make any style last all day. Hold Index: 25. Wind resistant up to 25MPH. Super hold up to 120 hours. High humidity resistance up to 24 hours. For super hold finish: Shake well. Hold can 8-10" away, and spray in short bursts. To build volume: Spray between layers at base. To secure long hair dressing: Spray over finished style. Flake-free and fast-drying.