In celebration of the first full day of summer, Wayback Burgers is once again hosting their annual “Free Shake Day” promotion on Monday, June 21, 2021.
As part of the celebration, participating locations will be offering fans a free 12-oz Chocolate Shake in-restaurant – no purchase necessary. As an added bonus, the first 50 fans at each location on Monday, June 21, will also receive a free Shake Koozie with their shake.
The brand’s hand-dipped Chocolate Shake is crafted to order with a blend of Blue Bunny ice cream and milk.
Wayback’s annual Free Shake Day promotion is valid at participating locations nationwide for one day only on Monday, June 21, 2021.
Image – Wayback Burgers