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High Security Envelopes

Sometimes a normal envelope just won't do and that's when high security envelopes can make all the difference. Tear, water and burst resistant we have a selection of sizes with expanding gussets for those larger items that need protection.

14 products found
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Best Seller
8 In Stock
  • Security envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: B4A (330 x 250mm)
  • Colour: white
  • Pack of 100
Product Code: TY02262
Pack size 1
£37.19
Pack of 1 incl. VAT £44.63
RRP £143.30
74%
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  • Security envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: C5 (229 x 162mm)
  • Colour: white
  • Pack of 100
Product Code: TY00001
Pack size 1
£22.69
Pack of 1 incl. VAT £27.23
RRP £85.24
73%
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  • Pocket envelope with 38mm gusset designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: B5 (353 x 250 x 38mm) envelopes
  • Colour: white
  • Pack of 100
Product Code: TY03569
Pack size 1
£63.09
Pack of 1 incl. VAT £75.71
RRP £150.53
58%
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76 In Stock
  • Gusset envelope designed be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: D4 (381 x 254 x 50mm)
  • Colour: white
  • Pack of 100
Product Code: TY02270
Pack size 1
£95.39
Pack of 1 incl. VAT £114.47
RRP £347.57
73%
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15 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: E4 (406 x 305 x 50mm)
  • Colour: white
  • Pack of 20
Product Code: TY02274
Pack size 1
£34.09
Pack of 1 incl. VAT £40.91
RRP £81.61
58%
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9 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: C4 (324 x 229 x 20mm)
  • Colour: white
  • Pack of 100
Product Code: TY02267
Pack size 1
£68.59
Pack of 1 incl. VAT £82.31
RRP £239.44
71%
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2 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: C4 (324 x 229 x 38mm)
  • Colour: white
  • Pack of 20
Product Code: TY02277
Pack size 1
£19.99
Pack of 1 incl. VAT £23.99
RRP £51.81
61%
Compare
15 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: B4A (330 x 250 x 38mm)
  • Colour: white
  • Pack of 100
Product Code: TY02269
Pack size 1
£70.39
Pack of 1 incl. VAT £84.47
RRP £277.60
75%
Compare
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  • Security envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: C4 (324 x 229mm)
  • Colour: white
  • Pack of 100
Product Code: TY02261
Pack size 1
£34.59
Pack of 1 incl. VAT £41.51
RRP £131.19
74%
Compare
7 In Stock
  • Flexible mailer and box in one
  • Two boardback inserts for rigidity
  • 25mm gusset for bulkier items
  • Ideal for online businesses
  • Designed to fit standard letter boxes
  • C4 (229 x 324mm)
  • Colour: white
  • Pack of 50
Product Code: TY63992
Pack size 1
£65.59
Pack of 1 incl. VAT £78.71
RRP £119.26
45%
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2 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: E4 (406 x 305 x 50mm)
  • Colour: white
  • Pack of 100
Product Code: TY02271
Pack size 1
£106.79
Pack of 1 incl. VAT £128.15
RRP £389.60
73%
Compare
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  • Security envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: E4 (394 x 305mm)
  • Colour: white
  • Pack of 100
Product Code: TY02264
Pack size 1
£53.69
Pack of 1 incl. VAT £64.43
RRP £186.10
71%
Compare
18 In Stock
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: B4A (330 x 250 x 38mm)
  • Colour: white
  • Pack of 20
Product Code: TY02276
Pack size 1
£27.39
Pack of 1 incl. VAT £32.87
RRP £58.10
53%
Compare
Check Stock - Click Here
  • Gusset envelope designed to be water and tear resistant
  • Made of 100% high density polyethylene fibres (HDPE)
  • Extra strong hot melt peel and seal closure
  • Size: C4 (324 x 229 x 38mm)
  • Colour: white
  • Pack of 100
Product Code: TY02268
Pack size 1
£64.99
Pack of 1 incl. VAT £77.99
RRP £248.36
74%
Compare
Total 14 products
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