12 x 15 1/2" (50 Pack) Poly Mailers with Tear Strip

12 x 15 1/2" Anti-Static Bubble Pouches

12 x 15 1/2" Black Poly Mailers

12 x 15 1/2" Black Tyvek® Envelopes

12 x 15 1/2" Blue Poly Mailers

12 x 15 1/2" Clear View Poly Mailers

12 x 15 1/2" Flat Ship-Lite® Envelopes

12 x 15 1/2" Green Tyvek® Envelopes

12 x 15 1/2" Kraft Clasp Envelopes

12 x 15 1/2" Kraft Gummed Envelopes

12 x 15 1/2" Kraft Redi-Seal Envelopes

12 x 15 1/2" Pink Poly Mailers

12 x 15 1/2" Poly Mailers

12 x 15 1/2" Poly Mailers with Tear Strip

12 x 15 1/2" Red Poly Mailers

12 x 15 1/2" Red Tyvek® Envelopes

12 x 15 1/2" Returnable Poly Mailer

12 x 15 1/2" Self-Seal Bubble Pouches

12 x 15 1/2" Silver Tyvek® Envelopes

12 x 15 1/2" White Flat Tyvek® Envelopes

12 x 15 1/2" White Self-Seal Envelopes

12 x 15 1/2" Yellow Poly Mailers

12 x 15 1/2" Yellow Tyvek® Envelopes

12 x 15 x 3" Kraft Expandable Self-Seal Envelopes

12 x 15" "Clear Face" Document Envelopes