https://www.shakeshack.com/2021/05/19/get-vaxed-get-shack/?
Friday, May 21 through Saturday, June 12, we’ll be servin’ up free* Crinkle Cut Fries to vaccinated guests with the purchase of any burger or chicken sandwich. To redeem, just show a Team Member your vaccine card before ordering in-store at our except for airports, stadiums, and ballparks.
* Offer valid until 11:00 pm EST on 6/12/2021 only at participating Shake Shack locations when you show proof of vaccination (vaccine card) to the cashier (excluding airports, stadiums, and ballparks). Must purchase a burger or chicken sandwich in-store for promotion to apply. Max savings of $3.15. One-time use only. Offer includes plain Crinkle Cut Fries only. Not available on app, web, or delivery.
Friday, May 21 through Saturday, June 12, we’ll be servin’ up free* Crinkle Cut Fries to vaccinated guests with the purchase of any burger or chicken sandwich. To redeem, just show a Team Member your vaccine card before ordering in-store at our except for airports, stadiums, and ballparks.
* Offer valid until 11:00 pm EST on 6/12/2021 only at participating Shake Shack locations when you show proof of vaccination (vaccine card) to the cashier (excluding airports, stadiums, and ballparks). Must purchase a burger or chicken sandwich in-store for promotion to apply. Max savings of $3.15. One-time use only. Offer includes plain Crinkle Cut Fries only. Not available on app, web, or delivery.