The Van Heusen Men's Flex Straight Fit Flat Front Pant is a popular choice on Amazon for Gaucho pants. These pants are made from a blend of polyester and spandex, offering a comfortable and flexible fit. They feature a straight fit with a flat front and a straight leg for a modern look. The pants have a stretch fabric that moves with you, providing all-day comfort. They also have a wrinkle-resistant fabric that stays smooth throughout the day. With a high customer rating, these Gaucho pants are highly recommended for their comfort and style.