Octopus supply gusset envelopes 15x10" size in several brands including Plus Fabric, New Guardian and 5 Star. Gusset envelopes expand to accept bulky documents and files that will not fit in standard envelopes.
The expanding capacity is available in 2 thicknesses, either 1" (25mm) or 1.5" (38mm) depending on the brand.
We deliver the next day all over the UK, however we can deliver the same day in Greater Manchester and Cheshire from our Stockport warehouse.