While both trousers and chinos are types of pants, there are key distinctions between them. Trousers are a broad category of pants that can include formal dress pants made of various materials. On the other hand, chinos are a specific type of trousers made from cotton twill fabric, often with a more casual and relaxed design. Chinos typically have slimmer cuts, a flat front, and are available in various colors, making them suitable for both casual and slightly dressier occasions.