19th Century Early Typical Regency Era Men’s Pants With Drop Down Front Flap. Breeches, pantaloons and trousers usually opened by front flaps which dropped down and were fastened with buttons. No belts but pants were instead held up by tight-fitting waists and adjusted to fit snugly by ties or buckles in the back. Back seats were baggy to allow a man to sit and stand comfortably. Typical of a gentleman’s pants worn during the early 1800s, or the Regency Era, or Jane Austen’s times. They have a front flap, or fall, a back waist tie and buttons and ties to secure the breeches below the knee.