Shake it up this summer at Shake Shack! Enjoy a cool summer afternoon with a sweet treat at a bargain price — even better when shared with a friend or family member. Of course, Shake Shack is known for its delicious shakes, alongside the juicy burgers and crispy crinkle fries on its menu.

Image: Shake Shack
The restaurant offers a variety of shakes, including non-dairy, limited-time and classic flavors.
From May 9 to July 31, Shake Shack is sweetening summer afternoons with buy-one-get-one FREE shake special at participating locations.
The sweet special is only available via Shake Shack’s site or app. (The offer excludes locations at airports, stadiums and ballparks.)
Here’s how to get the sweet deal:
1. Add any two shakes to your bag. Any size, any flavor!
2. Make sure your order is scheduled for between 2 p.m. and 5 p.m.
3. Enter promo code SHAKEITUP at checkout.
4. Pick-up your shakes and enjoy!
The deal is not valid for in-store, delivery or curbside pick-up nor for orders made via a third-party delivery service.
Limit one time use per order — with a maximum savings of $6.59. The discount will be applied to the qualifying shake of equal or lesser value.
There are 9 locations in Colorado — Boulder, Castle Rock, Denver (4), Greenwood Village, Highlands Ranch and Lone Tree.