He's sitting there in the full heat of the day, wearing a long sleeved shirt and full-length trousers and tall socks, perfectly comfortable in the sun.
She's sitting in an air conditioned bubble, wearing mid-arm sleeves, and mid-thigh shorts, at a time when Capri pants were considered fashionable yet still a bit scandalous.
If he's comfortable with full-length everything in the sun, she's definitely under-dressed in her air-conditioned bubble.