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.
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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