A professional envelope design for business correspondence, professionally designed by Template.net, with flowing blue wave shapes, a logo box and a contact details block with icons in bright blue, deep navy and white.

A professional envelope design for business correspondence, professionally designed by Template.net, with flowing blue wave shapes, a logo box and a contact details block with icons in bright blue, deep navy and white.
Customize it in two ways:
By Template.net
Replace the logo in [logo_image] with Upload Image, and replace the text with , change to relevant elements while keeping similar style, composition and background.
Quality