High Efficiency Envelope

The outside seam ensures no 'catching' while inserting.

High Efficiency Envelope

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The High Efficiency Envelopes is our very best option for high speed insertion!
The proprietary flap & throat design coupled with a generous outside side seam will alleviate all your insertion issues!


  • Available with or without windows
  • Available with artline
  • stock options are 24lb white wove or natural kraft
  • stock and custom sizes available
  • meets Canadian and US postal standards
  • 3/4" outside side seam 
  • proprietary flap & throat design


  • No "catching" on seam while inserting: reduces jamming & downtime.
  • Optimized insertion on high speed equipment.
  • Select from ready-made inventory or create your own.
  • Virtually limitless custom applications.
  • Provides unique branding opportunities.
  • Worry-free mailing.

From the mailroom to the mailbox, SupremeX has the products and solutions you need. Call us today for your perfect packaging!

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