A 1981 Sun-In ad, "How your hair can have summer highlights all winter long," featuring a tousled blonde model paired with a small inset bikini photo to sell the year-round hair-lightening spray. A hair dryer cord winds down through the layout to the product boxes below.

• Model shown with voluminous, sun-streaked blonde waves
• Small inset photo shows her in a red bikini for a summer comparison
• Sun-In and Super Sun-In spray bottles pictured with a plugged-in hair dryer
• Copy explains the spray works with dryer heat instead of direct sunlight
• Built-in conditioners noted to protect hair while lightening
• Measure approximately 8 x 11 inches