Get swim trunks with a liner and a zippered pocket

Yes, that’s the combo you want for running on the beach.

Mesh liners in regular board shorts chafe when you’re moving faster than a stroll. Look for trunks with a built-in compression liner – it stays put, wicks sweat, and doesn’t ride up. You’ll thank yourself after half a mile.

Pockets matter too. Loose change, keys, phone – they’ll fall out if you’re jogging. Get a zippered back pocket or a secure