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I'm interested in learning more about the material used for the rain fly of your portable shelter. Understanding the composition is crucial for me as it impacts both durability and performance in various weather conditions. Could you provide detailed information regarding the fabric type, weight, and any weather-resistant features it may have? Additionally, if you could share insights on the manufacturing process or any certifications related to the materials used, that would be greatly appreciated. This will help me assess the quality and suitability for my needs. Looking forward to your prompt response!