November 3 is National Sandwich Day.

Subway, the major sandwich chain, is offering a buy one, get one free deal for the special day.

Any customer that purchases a six-inch sub and drink will receive another sub for free.

The promotion is a part of Subway's Good Deed Feed promotion.

In addition to the free sub, Subway will also donate a meal to Feeding America for every sub purchased.

According to a release, Subway is aiming to make National Sandwich Day, November 3, the largest day of meal donation in Feeding America's history.