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New Guardian Heavyweight Manilla Board Backed Envelopes. Send documents with confidence in these high quality manilla board backed envelopes which provide a combination of good looks and strength. Exceptionally strong 130g/m ribbed manilla paper across the whole range. Subtle ribbed texture and distinctive sheen provides an attractive finish. Backed with a sturdy board to keep contents flat and protected. Printed 'Please do not bend' instructing considerate handling. Peel and Seal gumming for an exceptionally strong seal.

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for A4 documents folded once or unfolded A5 documents, the C5 envelopes feature a simple and secure self seal closure. This pack contains 250 manilla envelopes.
Plain pocket envelopes
Heavyweight 130gsm paper
Self seal closure
Size: C5 (229 x 162mm)
Colour: Manilla
Pack of 250

New Guardian C5 Envelope Pocket Self Seal Manilla (Pack of 250) D26103

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for A4 documents folded once or unfolded A5 documents, the C5 envelopes feature a strong Power-Tac peel and seal closure, and an easy open tear strip. This pack contains 250 manilla envelopes.
Plain pocket envelopes
Heavyweight 130gsm paper
Power-Tac peel and seal closure
Easy open tear strip
Size: C5 (229 x 162mm)
Colour: Manilla
Pack of 250

C5 Envelopes Pocket 130gsm Manilla (Pack of 250) L26039

New Guardian Pocket Envelope C4 Peel and Seal Power-Tac Easy Open Window 130gsm Manilla (Pack 250) Exceptionally strong envelopes combining good looks and strength. Heavyweight 130gsm manilla with a subtle ribbed texture and distinctive sheen. All items are made from EU Eco-label accredited paper - better for the environment. Easy Open envelopes feature a built-in tear strip allowing the recipient to open the envelope quickly and easily without damaging contents or compromising security. Featuring Power-Tac adhesive for an exceptionally strong seal. Peel and Seal. Window 40x100mm. Window position: 25mm in from left and 213mm up. Size: C4 324x229mm. Boxed 250.

New Guardian Pocket Envelope C4 Peel and Seal Power-Tac Easy Open Window 130gsm Manilla (Pack 250)

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for unfolded A4 documents, the C4 envelopes feature a simple self-seal closure and convenient address window measuring 40 x 100mm. This pack contains 250 manilla envelopes.
Pocket envelopes with address window
Heavyweight 130gsm paper
Window size: 40 x 100mm
Window position: 25mm in, 213mm up
Self seal closure
Size: C4 (324 x 229mm)
Colour: Manilla
Pack of 250

C4 Envelope Window Self Seal Manilla (Pack of 250) M27503

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Ideal for mailing larger, bulkier items, these C3 envelopes measure 457 x 324mm and feature a simple, secure peel and seal closure. This pack contains 125 manilla envelopes.
Plain pocket envelopes
Heavyweight 130gsm paper
Peel and seal closure
Size: C3 (457 x 324mm)
Colour: manilla
Pack of 125

C3 Envelope 457x324mm Pocket Manilla (Pack of 125) C27013

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. The C4 envelopes feature an extra strong and secure Power-Tac peel and seal closure, easy open tear strip and convenient address window measuring 40 x 100mm. Suitable for unfolded A4 documents, this pack contains 250 manilla envelopes.
Pocket envelopes with address window
Heavyweight 130gsm paper
Window size: 40 x 100mm
Window position: 25mm in, 213mm up
Power-Tac peel and seal closure
Easy open tear strip
Size: C4 (324 x 229mm)
Colour: Manilla
Pack of 250

New Guardian C4 Envelope Window Peel/Seal Manilla (Pack of 250) F24203

These New Guardian envelopes provide superior protection and strength with durable, heavyweight 130gsm paper. Suitable for unfolded A4 documents, the C4 envelopes feature a simple self-seal closure for ease of use. This pack contains 250 manilla envelopes.
Plain pocket envelopes
Heavyweight 130gsm paper
Self seal closure
Size: C4 (324 x 229mm)
Colour: Manilla
Pack of 250

C4 Envelope Self Seal 130gsm Manilla (Pack of 250) L26303

These sturdy, durable New Guardian board back envelopes feature heavyweight 130gsm paper and are printed with 'Please do not bend' for mailing certificates, photos, artwork and more. Suitable for A4 documents, the C4 manilla envelopes also feature a strong Power-Tac peel and seal closure for secure mailing. This pack contains 125 manilla envelopes.
Board back envelopes printed 'Please do not bend
Heavyweight 130gsm paper
Extra strong and secure Power-Tac peel and seal closure
Size: C4 (324 x 229mm)
Colour: Manilla
Pack of 125

New Guardian C4 Envelopes Board Back Manilla (Pack of 125) H26326

These New Guardian Armour gusset envelopes are made from durable, heavyweight 130gsm paper reinforced with woven polyester thread for additional strength. The manilla envelopes feature a simple peel and seal closure with Power-Tac adhesion for an extra strong bond and expanding 50mm gusset for mailing bulky items. These envelopes measure 381 x 279 x 50mm. This pack contains 100 manilla envelopes.
Extra strong pocket envelopes with 50mm gusset
Made from durable 130gsm paper reinforced with woven polyester thread
Strong peel and seal closure with Power-Tac adhesion
Size: 381 x 279 x 50mm
Colour: manilla
Pack of 100

Armour Envelope 381x279x50mm Manilla (Pack of 100) H28313

These sturdy and durable New Guardian board back envelopes feature heavyweight 130gsm paper and are printed with 'Please do not bend', making them ideal for mailing certificates, photos, artwork and more. Suitable for A4 documents, the C4 manilla envelopes also feature a strong Power-Tac peel and seal closure and convenient address window measuring 40 x 100mm. This pack contains 125 manilla envelopes.
C4 board back envelopes with address window
Heavyweight 130gsm paper
Extra strong and secure Power-Tac peel and seal closure
Window size: 40 x 100mm
Window position: 25mm in, 213mm up
Colour: Manilla
Pack of 125

New Guardian C4 Envelope Window BoardBack Manilla (Pack of 125) B26526

H26326 NG Envelope C4 B/Bk P/Seal Man. (Pack-125)

Ideal for mailing bulky items such as catalogues, reports, brochures and more, these New Guardian envelopes feature an expanding 25mm gusset and durable, heavyweight 130gsm paper. The manilla envelopes feature a simple peel and seal closure with Power-Tac adhesion for a quick, strong seal. Suitable for A4 documents, this pack contains 100 C4 envelopes.
Plain pocket envelopes with 25mm gusset
Heavyweight 130gsm paper
Strong Power-Tac peel and seal closure
C4 (324 x 229mm) envelopes with 25mm gusset
Colour: manilla
Pack of 100

New Guardian C4 Envelopes Gusset 130gsm Manilla (Pack of 100) E27266

Ideal for mailing bulky items such as catalogues, reports, brochures and more, these New Guardian envelopes feature an expanding 25mm gusset and durable, heavyweight 130gsm paper. The manilla envelopes feature a simple peel and seal closure with Power-Tac adhesion for a quick, strong seal. This pack contains 100 envelopes measuring 381 x 254 x 25mm.
Plain pocket envelopes with 25mm gusset
Heavyweight 130gsm paper
Strong Power-Tac peel and seal closure
Size: 381 x 254 x 25mm
Colour: manilla
Pack of 100

Envelope P/Seal 381x254x25mm Manilla (Pack of 100) M27466

Suitable for notes, coins and payslips, these plain New Guardian wage envelopes are made from 80gsm paper and feature a secure self-seal closure with tamper-evident security slits which tear upon opening. Each envelope measures 108 x 102mm and this bulk pack contains 1,000 wage envelopes.
Plain wage envelope
Durable 80gsm paper
Self seal closure with tamper-evident security slits
Size: 108 x 102mm
Colour: Manilla
Pack of 1000

Our Official New Guardian Product Range