I'm looking to order a custom vinyl banner for an outdoor event. What are the available material options for outdoor vinyl banners, what is the maximum size I can order, and what are the accepted file formats for uploading my design?
Navigate to the 'Banners' category from the homepage or main navigation. Locate and click on a link related to 'Vinyl Banners' or 'Custom Banners'. On the vinyl banner product page, identify and extract information regarding material options suitable for outdoor use. Find the maximum customizable size available for vinyl banners. Locate the section detailing accepted file formats for design uploads. Synthesize all three pieces of information into a concise answer.
Identify at least one material option specifically recommended or suitable for outdoor vinyl banners. State the maximum customizable size for vinyl banners. List at least three accepted file formats for design uploads for custom banners.