Our Mail Lite white bubble envelopes are economical yet versatile bubble lined envelopes ideal for general purpose mailing. Strong and reliable, they have a laminated interior with a sealed air cushion lining and a Kraft exterior that's resistant to punctures and tearing. You can easily write or stick labels on the surface. Our MLWB/00 Mail Lite envelopes have a convenient self-seal closure that also acts as a tamperproof solution. Sized 120 x 210mm, they come in packs of 100 and are Royal Mail large letter size.