Men's clothing sizes typically include measurements for the chest, waist, and inseam. Sizes are often represented in numbers, such as 32, 34, or 36, which correspond to the waist measurement in inches. For shirts, sizes may also include small, medium, large, and extra-large, with specific measurements for neck and sleeve length. Different brands may have variations in sizing, so it's important to check their specific size charts. Additionally, some styles, like suits or jeans, may have unique sizing systems, such as alpha sizing or numeric sizing, which can further complicate the selection process.