Fedoras are best matched with a dressier look (suits, blazers) or at least a collared shirt. Pair a straw fedora with a short-sleeved button-up shirt and chinos for a casual warm-weather outfit.

She wore the chic accessory around her ponytail and finished off her smart, equestrian look with a straw fedora. For the annual event, which takes place on the grounds of Windsor Castle ...