Tropical Smoothie Cafe will give you a free smoothie if you're wearing flip flops

In honor of National Flip Flop Day and the start of summer, Tropical Smoothie Cafe is giving away free 12-ounce Island Punch smoothies to customers sporting their favorite flip-flops on Wednesday, May 29. 

The limited-time offer is available in person only from 2 p.m. to 7 p.m. at participating locations, according to the company's website

Customers do not need to download the company's mobile app to receive the refreshing beverage.

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