The Design Envelope in an orange shade with an unusual organic character is the answer to market needs. The envelopes give correspondence a rustic and natural feel. They are impermeable to light and very robust with a thickness of 110gsm. The envelopes come in a C5 format and measure 162x229mm. They open on the short side. There is a strip of paper on the trapezoidal flap to secure the glue (HK type).