National Flip Flop Day

There is no sound quite like the happy slap of flip flops on a warm sidewalk. It is the sound of the school year ending, the pool opening, and the long lazy days stretching out ahead. National Flip Flop Day celebrates the unofficial footwear of summer and the beach life, and it always lands on the Wednesday after the Memorial Day holiday. It is a day to kick off summer in style, embrace relaxation and good vibes, and lean all the way into what Tropical Smoothie Cafe calls Tropic Time: that easygoing, carefree spirit that makes an ordinary Wednesday feel like a vacation.

The day was established in 2007 by Tropical Smoothie Cafe as an annual celebration marking the start of summer. The Atlanta based company created the holiday to celebrate its 10th anniversary, and what began as a birthday party for the brand has grown into a beloved national tradition. Each year, the cafe invites the community to kick back, relax, and treat themselves, serving as a refreshing break from the daily grind and urging guests to enjoy their own everyday getaways.

The most famous part of the celebration is the freebie. Each year, Tropical Smoothie Cafe treats guests who visit a participating location wearing their favorite pair of flip flops to a complimentary 12 ounce Island Punch Smoothie, a passport to Tropic Time crafted from peach, guava, passion fruit, mango, and pineapple. In past years the giveaway ran from 2 to 7 p.m. local time, and with more than 1,000 cafe locations across 45 states joining in, the flip flop parade stretches from coast to coast. It is a sweet deal too: a 12 ounce smoothie would normally run about four dollars, but on National Flip Flop Day it is free just for showing up in your flippies.

The celebration does not stop at one smoothie. The day has become the launch pad for the cafe’s summer menu, with returning limited time favorites like the Mango Berry Cosmo Smoothie, a refreshing blend of mango, strawberries, cranberry, and lime, and the Watermelon Mojito Smoothie, featuring fresh watermelon and mint blended with strawberries and lime. And the good vibes keep going after the flip flops come off: immediately following National Flip Flop Day, Tropical Smoothie Cafe traditionally fundraises for its partner No Kid Hungry, inviting guests to help spread sunshine with voluntary donations at participating cafe locations to help end child hunger.

It is fitting that such humble footwear gets its own holiday, because flip flops are among the oldest shoes in human history. Simple thong sandals date back thousands of years to ancient Egypt, where they were woven from papyrus and palm leaves, and the modern rubber flip flop traces its inspiration to the Japanese zori, which American soldiers encountered after World War II. From ancient riverbanks to boardwalks to backyard barbecues, the design has barely changed: a flat sole, a Y shaped strap, and instant summer. National Flip Flop Day simply gives this timeless classic the applause it deserves.

Why not turn the whole day into a proper summer launch party? Declare a personal dress code of flip flops from morning to night, plan a beach or pool outing with friends, fire up the grill for the first cookout of the season, and end the evening watching the sunset with sandy feet. Post your flip flop lineup to social media with #NationalFlipFlopDay and see how the rest of the country is celebrating. The unofficial rule of the day is simple: if it feels like summer, you are doing it right.

The summer menu that arrives with the day is worth lingering over. Beyond the free Island Punch, the seasonal lineup has featured the Mango Berry Cosmo, blending mango, strawberries, cranberry, and lime into something bright and festive, and the Watermelon Mojito, with fresh watermelon and mint blended with strawberries and lime for peak refreshment. Whether you are a smoothie purist or an adventurous sipper, National Flip Flop Day is the ideal excuse to try the flavor you have been eyeing all spring. Order it in your flip flops, find a sunny spot, and let summer officially begin.

THE STORY BEHIND NATIONAL FLIP FLOP DAY

🫂 Born in 2007 as a 10th Birthday Party
Tropical Smoothie Cafe established National Flip Flop Day in 2007 to celebrate the company’s 10th anniversary. What started as a birthday celebration for the Atlanta based brand became an annual tradition marking the start of summer, with a focus on relaxation, good vibes, and the carefree spirit the company calls Tropic Time.

📅 Always the Wednesday After Memorial Day
The date for National Flip Flop Day changes each year, but it is always the Wednesday after the Memorial Day holiday. In 2027, with Memorial Day falling on May 31, the celebration lands on June 2. The midweek timing is part of the charm: it turns an ordinary Wednesday into a mini vacation, no time off required.

🥕 The Famous Island Punch Freebie
The signature move of the day is the free 12 ounce Island Punch Smoothie for guests who show up in flip flops at participating cafes. The smoothie blends peach, guava, passion fruit, mango, and pineapple into what the company calls a passport to Tropic Time. In past years the giveaway ran from 2 to 7 p.m. local time at more than 1,000 locations across 45 states.

🌴️ What Is Tropic Time
Tropic Time is Tropical Smoothie Cafe’s name for the easygoing spirit of summer: celebrating the season, embracing carefree vibes, and treating yourself to everyday getaways. The company’s chief marketing officer has called National Flip Flop Day the perfect occasion to kick back, relax, and treat yourself to something delicious, and millions of flip flop wearers happily agree.

💗 Sunshine for a Good Cause
The celebration has a generous streak. Immediately following National Flip Flop Day, Tropical Smoothie Cafe has traditionally fundraised for its partner No Kid Hungry, which works to end child hunger. Guests can help spread sunshine by making voluntary donations at participating cafe locations, turning a fun summer kickoff into real help for kids and families.

WAYS TO CELEBRATE

🫂 Score Your Free Smoothie
In the community, pull on your favorite pair of flip flops and head to a participating Tropical Smoothie Cafe for the famous free 12 ounce Island Punch Smoothie. Check that your local cafe is participating, arrive during the giveaway window, and enjoy your taste of Tropic Time.

🏖️ Throw a Flip Flop Hangout
With friends, make the whole day a celebration: a beach or pool outing, a backyard barbecue, or just a long walk in your flippies. Snap photos of your footwear lineup and post them with #NationalFlipFlopDay to join the nationwide parade.

☀️ Spread a Little Sunshine
At home, keep the good vibes going by supporting the day’s charitable spirit. Make a voluntary donation to help end child hunger, do a small summer kindness for a neighbor, and plan one more everyday getaway before the week is out.

Celebrate National Flip Flop Day

On June 2, 2027, let your feet do the celebrating. Slip into your flip flops, chase down a free smoothie, soak up the start of summer, and remember: the best vacations sometimes start with the simplest footwear.