42.5°C heat. Water festivals. Pool parties. One refreshing color.
Korea just posted the hottest temperature in its history — and went to the pool anyway. Here's what to wear to beat the heat: the mint takeover, the Waterbomb team-color mechanic, and four pieces actually worth buying.
On Sunday, the southeastern city of Yangsan reached 42.5°C — the highest temperature in Korean weather-record history, capping five straight days above 40 and beating a record that had stood since 2018 (Korea JoongAng Daily). More than twenty localities sat under emergency heat alerts, and Al Jazeera called it Korea's hottest day on record. And yet the pools were packed — because in Korea, a heat wave this brutal doesn't cancel summer, it is summer. The answer isn't air conditioning; it's getting soaked in public, in your best fit.
Veteran idol and producer J.Y. Park (Park Jin-young) — in his 31st year since debut, back for a second straight year — performed Waterbomb Seoul 2026 in a head-to-toe mint mesh look. When an icon of that stature goes mint on the country's biggest water-stage, the color stops feeling accidental and starts feeling like a signal — and the shops follow the next week (SBS Star, Travie).
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Mesh, metallic, sheer and sporty — mint core shows up in every festival vibe.

Where to wear it, the festival fits, the makeup, and a budget-to-designer shop guide.
Mint core isn't just pretty — it's practical, photogenic, team-ready and built for 42.5°C heat. If you buy one, make it the mint tube top: it's the easiest, freshest way onto the season's breakout color and it layers over anything. Whatever you grab, grab it now — these sell out the week after every Waterbomb date.
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Sources. Heat and festival reporting is drawn from public sources, credited above (Korea JoongAng Daily, Al Jazeera; Waterbomb and Boryeong Mud Festival official programs; SBS Star, Travie). Instagram reels are embedded from and credited to their original creators. The Legit Score is our editorial verdict; recommendations are our opinion. Prices and availability change.