Our most durable material. 18 Oz. Heavy-Duty vinyl banners are printed digitally in full vibrant color on 18 Oz. premium vinyl for extra long exterior life. These banners have strong UV resistant ink and last much longer in harsh conditions that lighter weight banners. Recommended for heavier wind environments, these semi-gloss banners are waterproof and have high tear and abrasion resistance due to their 1000x1000 denier. Come with heat-welded hems on all sides and grommets every few feet.