Our High Efficiency Envelopes are designed to maximize the uptime on your inserting equipment, allowing you to focus on the job at hand. Specifically designed to reduce ‘catching’ on the side seam when inserting, our High Efficiency Envelopes deliver proven results with our industry leading 99.85% defect-free rate. Available as part of our stock product line for quick shipping and also as a custom run with print and window options to maximize your throughput.