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These articles provide more detailed information about the services we provide and the benefits that these can bring to any mailing campaign.   This is a useful place to check out if you are looking for more advice about how to implement your direct mail campaign.

Which format is best is a common question we are often asked when quoting for direct mail campaigns. 

There are clear positives and negatives to both solutions, and in most cases the decision comes down to individual preference. However from our experience the following factors should be considered when deciding which option to choose.


  • Polywrapping will typically always be less expensive than the equivalent envelope enclosing. 
  • There are more Royal Mail services where you can achieve greater postage discounts when using envelopes over polywrap. 
  • The weight of an envelope compared to the equivalent polywrap can be a few grams heavier. This can be especially important if trying to keep the overall weight of the mailer below a postage price threshold. 
  • As polywrapping uses a roll of film that is wrapped around the mail-piece, it is a lot easier and therefore cheaper to wrap non standard sizes of products. Compare this to using envelopes which would require expensive bespoke envelopes to be manufactured or the use of envelopes which are too large which can look clumsy as well as damage the envelope during delivery. 

Environmental Considerations

  • Use of recycled envelopes works out considerably more expensive than envelopes made out of non-recycled paper. 
  • Recycled polythene is not commercially available/feasible. The environmental compromise is polythene that is biodegradable which significantly reduces the time to degrade if placed on landfill. There is also a difference in price between standard polythene and biodegradable polythene, however this is not as significant as the difference between the envelope options. 
  • There can be issues with recycling envelopes as some local authorities require windows to be removed. 
  • Although polywrap is recyclable, facilities are not easily accessible, and most councils advise polywap to be mailed to a commercial polythene recycler such as 

High Impact

  • With polywrap you have the benefit of having a high impact product that is immediately on display without the recipient having to open the item. 
  • Following on from the above, it is conceivable that more people at the recipient’s address will be able to view the mail-piece. This is especially true in a business as the mail can be passed from mailroom to reception to the recipient. 
  • However achieving a high impact may not always be the desirable. Take the sending of sensitive material such as bank statements or payslips, but this goes beyond the obvious, and can also include literature which some recipients may want to keep private e.g. pregnancy or political brochures. 

Protection of Mail Piece

  • There is greater scope for visible damage to envelopes in terms of getting crushed or folded as the mailer makes it way through the post. 
  • For heavier items, envelopes are typically less durable than polywrapping and more likely suffer damage as the mail is handled. 
  • Polywrap is waterproof compared to paper envelopes, which can prevent damage during delivery. 

Other Considerations

  • Polywrapping may not be suitable/cost-effective for small mailing quantities. 
  • Polywrapping can give a more professional appearance as this would need to have been outsourced to a mailing house. 
  • Both polythene and paper are volatile commodities, so where one option may be the lowest price on one occasion may not be the same in future. 
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