CarboPack
It looks like Natick has developed something new called the “Food Packet, Carbohydrate Supplement” or CarboPack for short:
According to the fact sheet, “the CarboPack consists of two eight-ounce carbohydrate electrolyte beverages and one carbohydrate rich bar providing a minimum of 75 grams of carbohydrate and 380 kilocalories.” In other words, two drink mixes and a powerbar.