If you have a folded flag (often from military service or a memorial), a shadow box frame is the standard choice. Make sure the glass is UV-protective to prevent the fabric from fading over time.
If "Made in the USA" is important to you, double-check the product description. Many premium sellers emphasize domestic manufacturing.
For a premium look, choose a flag with embroidered stars and sewn stripes . These provide texture and depth that printed flags lack.