#10Envelope

The #10 is the most widely used envelope for everyday mail—and this version keeps that familiarity while adding a bit of character. Made from 70# offset stock sourced from U.S. geographical maps (17½" x 22½" sheets, 3-up), these envelopes have a slightly heavier, more substantial feel than standard office mailers.
 
Designed with an open side and diagonal seam, they follow a classic construction that’s both durable and practical for regular use. Each envelope carries its own section of map—subtle contour lines, waterways, and natural tonal shifts—so no two are exactly alike.
 
Perfect for letters, invoices, or business correspondence, they function like any standard #10, just with a more thoughtful, distinctive finish.