Summer sale web banner design. Summer sale discount text with beach elements like swimsuit, beach ball and flip flops for summer seasonal promotion for banners, wallpaper, flyers, invitation, posters, brochure. Flat vector illustration. Summer sale web banner design. Summer sale discount text with beach elements like swimsuit, beach ball and flip flops for summer seasonal promotion for banners, wallpaper, flyers, invitation, posters, brochure. Flat vector illustration.