Marcelo Burlon is a renowned fashion brand known for its unique designs. To determine the authenticity of a product bought from the store, you can look for specific details such as the quality of materials, stitching techniques, and accurate branding. Additionally, you can compare the item with official photos and descriptions available on the brand's official website or trusted retailers. If you still have doubts, it's recommended to reach out to the brand's customer service or visit an authorized retailer for further assistance.