Air Heads® Xtremes® Sourfuls Soft & Chewy Candy Rainbow Berry. Starts sour. Stays sour. Always flavorful. Artificial flavored candy. Made in a facility that does not process nuts. 150 Calories per serving. 4 Servings per package. Net Wt 6 oz (107 g). Check out more ways to fill your sweetly sour™ crave. Air Heads Xtremes® Rainbow Berry Sweetly Sour Candy. Air Heads Xtremes® Rainbow Berry Soft & Chewy Candy Bites. Airheads Xtremes® is a trademark of Perfetti Van Melle Benelux, B.V. Visit www.airheads.com.