The Hawaiian bit seems to be a nod to the King's Hawaiian Roast Beef and Swiss offered earlier this summer.
The suggested retail price on the shake is $2.89 for a 20 fl oz cup.
The new shake is offered at participating locations nationwide and will be available through September 30, 2013.
Nutritional Info - Arby's Salted Caramel Shake (528g)
Calories - 680 (from Fat - 190)
Fat - 21g (Saturated Fat - 13g)
Sodium - 1400mg
Carbs - 114g (Sugar - 91g)
Protein - 16g
