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Gusset Envelopes

  • Tyvek C4 Gusset Envelopes [Qty 100] 324 x 229 x 38mm

    Tyvek C4 Gusset Envelopes [Qty 100] 324 x 229 x 38mm

    £50.00 excl. VAT (£60.00 incl. VAT)

    These Tyvek peel & seal envelopes are C4 in size (324mm x 229mm x 38mm) and made from 55gsm material. Made with a flexible gusset ensures they ...

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  • DL White Gusset String & Washer Envelopes [Qty 100] 220 x 110mm

    DL White Gusset String & Washer Envelopes [Qty 100] 220 x 110mm

    £39.50 excl. VAT (£47.40 incl. VAT)

    These white gusset string & washer envelopes are DL size 220mm x110mm x 25mm, so fits 1/3 folded A4 paper. Made from high quality 180gsm paper....

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  • DL White Gusset 120gsm Envelopes [Qty 200] 220 x 110 x 25mm

    DL White Gusset 120gsm Envelopes [Qty 200] 220 x 110 x 25mm

    £22.95 excl. VAT (£27.54 incl. VAT)

    DL White Gusset 120gsm Envelopes. These DL White Gusset Envelopes are made from high quality 120gsm paper, with peel & seal closure. Envelope d...

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  • DL Red Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    DL Red Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    £39.50 excl. VAT (£47.40 incl. VAT)

    These red DL gusset string & washer envelopes are designed to fit 1/3 folded A4 paper. The 25mm gusset means they can fit bulkier mailings. Mad...

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  • DL Manilla Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    DL Manilla Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    £36.50 excl. VAT (£43.80 incl. VAT)

    These manilla DL gusset string & washer envelopes are designed to fit 1/3 folded A4 paper. The 25mm gusset means they can fit bulkier mailings....

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  • DL Black Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    DL Black Gusset String & Washer Envelopes [Qty 100] 220 x 110 x 25mm

    £39.50 excl. VAT (£47.40 incl. VAT)

    These black DL gusset string & washer envelopes are designed to fit 1/3 folded A4 paper. The 25mm gusset means they can fit bulkier mailings. M...

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  • C6 White String & Washer Gusset Envelopes [Qty 100] 162 x 114 x 25mm

    C6 White String & Washer Gusset Envelopes [Qty 100] 162 x 114 x 25mm

    £38.50 excl. VAT (£46.20 incl. VAT)

    C6 White String & Washer Gusset Envelopes. From our popular String & Washer range these envelopes are in size C6 to fit A6 papers/cards (or...

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  • C6 White Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    C6 White Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    £29.00 excl. VAT (£34.80 incl. VAT)

    These C6 White Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel...

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  • C6 White Gusset 120gsm Envelopes [Qty 125] 162 x 114 x 25mm

    C6 White Gusset 120gsm Envelopes [Qty 125] 162 x 114 x 25mm

    £8.75 excl. VAT (£10.50 incl. VAT)

    These C6 White Gusset Envelopes are made from high quality 120gsm paper and feature a peel and seal closure.  The gusset feature (these envelopes e...

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  • C6 Red Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    C6 Red Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    £36.50 excl. VAT (£43.80 incl. VAT)

    These red string & washer envelopes are C6 size 162 x 114mm, so fits A6 size paper (or half folded A5). The 25mm gusset means they fit bulkier ...

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  • C6 Red Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    C6 Red Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    £33.50 excl. VAT (£40.20 incl. VAT)

    These C6 Red Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel w...

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  • C6 Manilla Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    C6 Manilla Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    £32.50 excl. VAT (£39.00 incl. VAT)

    These manilla string & washer envelopes are C6 size 162 x 114mm, so fits A6 size paper (or half folded A5). The 25mm gusset means they fit bulk...

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  • C6 Manilla Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    C6 Manilla Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    £25.00 excl. VAT (£30.00 incl. VAT)

    These C6 Manilla Gusset Envelopes are made from high grade 180gsm kraft paper, which is much thicker than your average envelope, meaning a real lux...

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  • C6 Black Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    C6 Black Gusset String & Washer Envelopes [Qty 100] 162 x 114 x 25mm

    £36.50 excl. VAT (£43.80 incl. VAT)

    These black string & washer envelopes are C6 size 162 x 114mm, so fits A6 size paper (or half folded A5). The 25mm gusset means they fit bulkie...

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  • C6 Black Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    C6 Black Gusset 180gsm Envelopes [Qty 200] 162 x 114 x 25mm

    £33.50 excl. VAT (£40.20 incl. VAT)

    These C6 Black Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel...

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  • C5+ White Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125] 178 x 254 x 25mm

    C5+ White Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125] 178 x 254 x 25mm

    £23.75 excl. VAT (£28.50 incl. VAT)

    Oversized C5 white gusset envelopes designed to fit A5 documents (or half A4). 120gsm paper with 25mm gusset, so perfect for bulky mailings and bro...

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  • C5+ Manilla Gusset 120gsm Peel & Seal Envelopes [Qty 125] 178 x 254 x 25mm

    C5+ Manilla Gusset 120gsm Peel & Seal Envelopes [Qty 125] 178 x 254 x 25mm

    £22.00 excl. VAT (£26.40 incl. VAT)

    C5+ Manilla Gusset 120gsm Peel & Seal Envelopes. Oversized C5 envelopes, so allowing a little extra room at the sides for chunkier documents or...

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  • C5 White String & Washer Gusset Envelopes [Qty 100] 229 x 162 x 25mm

    C5 White String & Washer Gusset Envelopes [Qty 100] 229 x 162 x 25mm

    £45.50 excl. VAT (£54.60 incl. VAT)

    C5 White Gusset String & Washer Envelopes. Now available in WHITE, from our popular String & Washer range these envelopes are in size C5 to...

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  • C5 White Gusset Window 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm
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    C5 White Gusset Window 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm

    £25.75
    £13.00 excl. VAT (£15.60 incl. VAT)

    C5 White Gusset Window 120gsm Peel & Seal Envelopes. These envelopes are size C5, so designed to fit A5 papers (or A4 folded in half). They fea...

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  • C5 White Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm
    Clearance

    C5 White Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm

    £21.50
    £12.50 excl. VAT (£15.00 incl. VAT)

    C5 white gusset pocket envelopes to fit A5 documents and brochures. 120gsm paper with peel & seal flap closure. Envelope size 162 x 229 x 25mm.

  • C5 Red Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    C5 Red Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    £41.50 excl. VAT (£49.80 incl. VAT)

    These red string & washer envelopes are C5 size 229 x 162mm, so fits A5 size paper (or half folded A4). The 25mm gusset means they fit bulkier ...

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  • C5 Red Gusset 180gsm Envelopes [Qty 200] 162 x 229 x 25mm

    C5 Red Gusset 180gsm Envelopes [Qty 200] 162 x 229 x 25mm

    £55.00 excl. VAT (£66.00 incl. VAT)

    These C5 Red Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel w...

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  • C5 Manilla String & Washer Gusset Window Envelopes [Qty 100] 229 x 162 x 25mm

    C5 Manilla String & Washer Gusset Window Envelopes [Qty 100] 229 x 162 x 25mm

    £38.50 excl. VAT (£46.20 incl. VAT)

    C5 Manilla String & Washer Window Gusset Envelopes. These manilla string & washer envelopes are C5 size 229 x 162mm, so fits A5 size paper ...

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  • C5 Manilla Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    C5 Manilla Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    £36.50 excl. VAT (£43.80 incl. VAT)

    These manilla string & washer envelopes are C5 size 229 x 162mm, so fits A5 size paper (or half folded A4). The 25mm gusset means they fit bulk...

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  • C5 Manilla Gusset 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm

    C5 Manilla Gusset 120gsm Peel & Seal Envelopes [Qty 125] 162 x 229 x 25mm

    £18.50 excl. VAT (£22.20 incl. VAT)

    C5 manilla pocket envelopes with 25mm gusset, so ideal for bulky documents. 120gsm paper with peel & seal flap. Envelope size 162 x 229 x 25mm

  • C5 Black Gusset Window 140gsm Peel & Seal Envelopes [Qty 125]

    C5 Black Gusset Window 140gsm Peel & Seal Envelopes [Qty 125]

    £44.00 excl. VAT (£52.80 incl. VAT)

    This is a C5 black gusset envelope with a window, its designed to fit A5 documents, brochures or cards. The all black colour envelope really stands...

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  • C5 Black Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    C5 Black Gusset String & Washer Envelopes [Qty 100] 229 x 162 x 25mm

    £41.50 excl. VAT (£49.80 incl. VAT)

    These black string & washer envelopes are C5 size 229 x 162mm, so fits A5 size paper (or half folded A4). The 25mm gusset means they fit bulkie...

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  • C5 Black Gusset 180gsm Envelopes [Qty 200] 162 x 229 x 25mm
    Clearance

    C5 Black Gusset 180gsm Envelopes [Qty 200] 162 x 229 x 25mm

    £86.50
    £39.00 excl. VAT (£46.80 incl. VAT)

    These C5 Black Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel...

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  • C4 White Gusset Window Pocket 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm
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    C4 White Gusset Window Pocket 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    £22.50
    £16.00 excl. VAT (£19.20 incl. VAT)

    C4 White Gusset Window 140gsm Peel & Seal Envelopes. C4 size envelopes, so designed to fit A4 papers/documents, with expanding gusset sides for...

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  • C4 White Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    C4 White Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    £50.00 excl. VAT (£60.00 incl. VAT)

    C4 White String & Washer Gusset Envelopes. From our popular String & Washer range these envelopes are in size C4 to fit A4 papers/cards, wi...

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  • C4 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm
    Clearance

    C4 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    £22.25
    £15.50 excl. VAT (£18.60 incl. VAT)

    229 x 324 x 25 C4 White Gusset Pocket 140gsm peel & seal Envelopes

  • C4 Storm Grey Gusset 140gsm Peel & Seal Envelopes [Qty 125]

    C4 Storm Grey Gusset 140gsm Peel & Seal Envelopes [Qty 125]

    £45.30 excl. VAT (£54.36 incl. VAT)

    C4 Storm Grey colour gusset envelopes designed to fit A4 documents or cards made from 140gsm paper with a peel & seal flap. This strong gusset ...

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  • C4 Red Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    C4 Red Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    £50.00 excl. VAT (£60.00 incl. VAT)

    C4 Red Gusset String & Washer Envelopes. From our popular String & Washer range these envelopes are in size C4 to fit A4 papers/cards. Enve...

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  • C4 Red Gusset 160gsm Peel & Seal Envelopes [Qty 200] 324 x 229 x 25mm

    C4 Red Gusset 160gsm Peel & Seal Envelopes [Qty 200] 324 x 229 x 25mm

    £54.00 excl. VAT (£64.80 incl. VAT)

    324 x 229 x 25mm C4 Red 160gsm gusset peel & seal envelopes

  • C4 Manilla String & Washer Gusset Window Envelopes [Qty 100] 324 x 229 x 25mm

    C4 Manilla String & Washer Gusset Window Envelopes [Qty 100] 324 x 229 x 25mm

    £62.50 excl. VAT (£75.00 incl. VAT)

    C4 Manilla String & Washer Gusset Window Envelopes. These manilla string & washer envelopes are C4 size 324 x 229mm, so fits A4 size paper....

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  • C4 Manilla Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    C4 Manilla Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    £50.00 excl. VAT (£60.00 incl. VAT)

    These manilla string & washer envelopes are C4 size 229 x 324mm, so fits A4 size paper or documents. Made from high quality 180gsm paper. The 2...

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  • C4 Manilla Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125]  229 x 324 x 25

    C4 Manilla Gusset Pocket 120gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25

    £23.50 excl. VAT (£28.20 incl. VAT)

    C4 manilla pocket envelopes to fit A4 documents and brochures. 25mm depth gusset and 120gsm paper, with peel & seal flap. Envelope size 229 x 3...

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  • C4 Cream Gusset Window 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    C4 Cream Gusset Window 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    £64.00 excl. VAT (£76.80 incl. VAT)

    C4 cream 140gsm envelopes with gusset and window. Peel & seal close. Envelope size 229 x 324mm. Great for brochures and heavier mailings due to...

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  • C4 Cream Gusset 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    C4 Cream Gusset 140gsm Peel & Seal Envelopes [Qty 125] 229 x 324 x 25mm

    £58.00 excl. VAT (£69.60 incl. VAT)

    C4 Cream 140gsm Gusset Peel & Seal Envelopes. Size C4 to fit A4 papers. 140gsm envelopes with 25mm gusset, so ideal for brochures and heavy mai...

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  • C4 Black Gusset Window 140gsm Peel & Seal Envelopes [Qty 125]

    C4 Black Gusset Window 140gsm Peel & Seal Envelopes [Qty 125]

    £58.00 excl. VAT (£69.60 incl. VAT)

    These C4 black envelopes are made with a 25mm gusset and window. They are designed to fit A4 documents, brochures or cards, the envelope is made fr...

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  • C4 Black Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    C4 Black Gusset String & Washer Envelopes [Qty 100] 324 x 229 x 25mm

    £50.00 excl. VAT (£60.00 incl. VAT)

    C4 Black Gusset String & Washer Envelopes. From our popular String & Washer range these envelopes are in size C4 to fit A4 papers/cards. En...

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  • C4 Black Gusset 180gsm Envelopes [Qty 200] 229 x 324 x 25mm

    C4 Black Gusset 180gsm Envelopes [Qty 200] 229 x 324 x 25mm

    £54.00 excl. VAT (£64.80 incl. VAT)

    These C4 Black Gusset Envelopes are made from high grade 180gsm paper, which is much thicker than your average envelope, meaning a real luxury feel...

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  • C3 White Gusset 140gsm Envelopes [Qty 125] 324 x 457 x 30mm

    C3 White Gusset 140gsm Envelopes [Qty 125] 324 x 457 x 30mm

    £38.16 excl. VAT (£45.79 incl. VAT)

    These C3 White Gusset Envelopes are made from high quality 140gsm paper and feature a peel and seal closure.  The gusset feature (these envelopes e...

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  • C3 Manilla Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 324 x 457 x 30mm

    C3 Manilla Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 324 x 457 x 30mm

    £38.16 excl. VAT (£45.79 incl. VAT)

    C3 manilla pocket envelopes with 30mm gusset. Made from high quality 140gsm thickness paper, with peel & seal flap. Envelope size 324 x 457 x 3...

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  • B4 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 250 x 352 x 25mm

    B4 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125] 250 x 352 x 25mm

    £31.50 excl. VAT (£37.80 incl. VAT)

    B4 size white pocket envelopes (250 x 352mm) with 25mm gusset. Pocket close with peel & seal flap. Made from good quality 140gsm paper.   The g...

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  • B4 Manilla Gusset Pocket Envelopes 140gsm Peel & Seal [Qty 125] 250 x 352 x 25mm

    B4 Manilla Gusset Pocket Envelopes 140gsm Peel & Seal [Qty 125] 250 x 352 x 25mm

    £33.75 excl. VAT (£40.50 incl. VAT)

    These B4 manilla gusset pocket envelopes provide a great value solution to your mailings. They measure 25 x 352mm with a gusset depth of upto 50mm....

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  • 305 x 406 x 30mm Manilla Gusset 140gsm Peel & Seal Envelopes [Qty 125]

    405 x 305 x 30mm Manilla Gusset 140gsm Peel & Seal Envelopes [Qty 125]

    £42.50 excl. VAT (£51.00 incl. VAT)

    405 x 305 x 30mm Manilla Gusset 140gsm Peel & Seal Envelopes. These manilla brown envelopes are made from 140gsm paper. Envelope dimensions are...

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  • 254 x 381 x 25 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125]

    254 x 381 x 25 White Gusset Pocket 140gsm Peel & Seal Envelopes [Qty 125]

    £33.50 excl. VAT (£40.20 incl. VAT)

    254 x 381 white pocket envelopes with 25mm gusset, ideal for bulkier mailings and brochures. Good quality 140gsm paper with peel & seal flap.

Make Sending Bulkier Letters Simple with Our Range of Gusset Envelopes

Gusset envelopes are the perfect choice for shipping or storing bulkier documents such as reports, catalogues and even books. They feature an expandable edge to fit in more than just a couple of sheets, and are made of robust paper too. At All Colour Envelopes, we’ve got plenty for you to choose from, whatever purpose you’ve got in mind.

Using the filters on the left of the page, you’ll be able to find gusset envelopes in numerous colours and styles. Choose white or manila for a traditional business appearance, or go for black or red if you need to highlight the importance of your correspondence. We’ve also got everything from string and washer envelopes to ones with windows for those sending out in bulk.

Order a free sample today to see the quality of our products for yourself, or add a box to your basket. If you have any questions about the ordering process, or any of the products that we sell, then please feel free to give us a call or send us an email. A member of the team will be on hand to help you.