Board shorts with a compression liner are the answer.

Yes. You want swim trunks that do double duty — keep you covered without extra bulk. Brands like Chubbies, Under Armour, Nike, and Outerknown all make trunks with built-in compression liners. They’re basically board shorts with a snug inner brief that stays put and prevents any accidental exposure.

The alternative is wearing compression shorts under regular swim trunks, which works fine but adds an extra layer to dry and wash. Built-in liners are simpler and feel less like you’re wearing two pairs of underwear.

Just make sure the liner is mesh or a quick-dry stretch fabric, not cotton. Cotton liners are a swampy nightmare. Look for “compression liner” or “built-in brief” in the product description. Chubbies calls theirs “9-inch inseam with compression liner.” Under Armour has a “HeatGear” liner in some models. Both are solid.

If you’re on a budget, Amazon Essentials has a decent pair for under $30. They’re not fancy, but the liner does the job.

Future You deserves to cannonball without a wardrobe malfunction.