Envelopes have a reflex blue pattern that protects sensitive client information because it obscures the details of the contents, even when held up to light.

• These security envelopes have the capacity of flat mailers without the postage cost.
• Protect sensitive client information with a reflex blue pattern that obscures the details of the contents, even when envelopes are held up to light.
• Single window envelopes display receiver addresses. Window is 1.38" x 4.5"; 0.88" from the left and 2.38" from the bottom.
• Just add moisture to the adhesive strip along the envelope flap and seal closed; no peel off strip to dispose of.
• Durable 28-lb postage saver flat mailers are great for bulk mailings; packaged in stock-up friendly boxes of 500.