Expandable Tyvek Envelopes

  • These expandable Tyvek envelopes are gussetted so they expand to allow a large capacity of paperwork to be shipped or mailed. Constructed of strong 18 lb. olefin.
  • All of these mailers provide protection from punctures, tears and water damage.
  • Each envelope expands to hold twice as much as flat envelopes as well as much stronger.