Light colors and mesh panels beat black rash guards

Light colors and mesh panels beat black rash guards.

Look for a lightweight polyester-spandex blend in a light color with mesh vents. That’s the short answer.

The UPF 50+ label means the fabric blocks 98% of UV rays, but it doesn’t mean you’ll cook alive. The real heat comes from dark colors soaking up sunlight and thick materials trapping sweat. Light colors (white, light gray, pastels) reflect heat. Mesh panels under the arms or along the back let air move. Polyester-spandex is stretchy, dries fast, and doesn’t get heavy when wet like cotton does.

Avoid anything that feels like a wetsuit—that’s for warmth, not sun protection. And skip cheap no-name brands that slap a UPF tag on without testing. Stick with reputable swim brands (Coolibar, Columbia, or just