Melania Trump, 47, chose the green cap in solidarity with the storm-ravaged state.
The rest of her outfit was also casual, and the First Lady chose a loose fitting denim shirt, which she wore with the collar popped.
She paired this with dark green denim cutoff jeans, which had a skinny fit.
A pair of darn green Converse trainers completed the look.
Shading her eyes from the sun, Melania opted for a pair of large mirrored aviators.