A "Fit Guide" is a helpful resource that provides information on how to choose the right size and fit for clothing or footwear. It typically includes measurements, size charts, and tips on how to measure yourself accurately. This guide ensures that customers can find items that suit their body shape and preferences, enhancing their shopping experience. Many brands, such as Nike or Levi's, offer their own Fit Guides to assist shoppers. These guides may also include details about different styles, such as slim fit or relaxed fit, helping individuals make informed decisions based on their personal comfort and style.