In a shaker filled with ice, combine cranberry juice drink, vodka, and lime juice. Shake it up and then strain into a large martini glass.
Top with a splash lemon-lime soda and garnish with lime, if using. Enjoy!
PER SERVING (entire recipe): 100 calories, 0g fat, 32mg sodium, 2g carbs, 0g fiber, 1g sugars, 0g protein