Free Delivery
On orders over £49 ex VAT

Order Before 4pm
For next day delivery

About Us
Find out more

Price Drop
Great prices for Workplace Essentials

Search & Filter

Plain Envelopes

Padded envelopes, manilla envelopes, and self seal envelopes are all important vessels for your documents and letters when emails just won’t cut it. Rely on the plain envelopes to keep your business and school moving with Ryman Business. Shop our different sizes, paper types, quality, and package size below.

248 products found
Sort by
Kraft Mailing Bag Gusset 360x465x80mm/90mm Lip (Pack of 50) KMB360
Kraft Mailing Bag Gusset 415x495x100mm/100mm Lip (Pack of 50) KMB415
Kraft Mailing Bag Gusset 580x465x100mm/100mm Lip (Pack of 50) KMB580
Envelope DL 80gsm Self Seal White (Pack of 1000) WX3454
Envelope C4 115gsm Manilla Self Seal (Pack of 250) WX3461
Envelope C5 90gsm Self Seal White Boxed (Pack of 500) WX3469
Envelope DL 90gsm Self Seal White (Pack of 1000) WX3480
C4 Envelopes Self Seal 90gsm White (Pack of 250) WX3499
C5 Envelope 75gsm Self Seal Manilla (Pack of 500) WX3516
C4 Envelopes Plain Self Seal 90gsm White (Pack of 250)
Envelope C4 Manilla 80gsm Plain Non Window 324x229mm (pack of 250)
C5 Envelopes Plain Self Seal 90gsm White (Pack of 500)
Envelope C5 Manilla 80gsm Plain Non Window 229x162mm (pack of 500)
DL Envelopes Plain Self Seal 80gsm White (Pack of 1000)
Envelope DL Manilla 80gsm Plain Non Window 110x220mm (pack of 1000)
Blake Everyday Envelopes White Pocket Plain Self Seal 100gsm 352x250mm (Pack 250) - 11060
Pukka Post & Packaging Envelopes C6 Gold Gummed 100gsm 114mmx162mm (Pack 25) - 9063-ENV
5 Star Value Envelope C5 Pocket Self Seal 100gsm White (Pack of 500)
5 Star Office Envelopes Pocket Peel/Seal 100gsm C5 229x162mm White (Pack of 500)
5 Star Office Envelopes Pocket Self Seal 90gsm C5 229x162mm White Retail Pack (Pack of 25)
E-Green C5 40mm Gusset Peel and Seal Mailer (Pack of 250) 69112
New Guardian Armour C4 Envelopes Gusset Manilla (Pack of 100) A28113
New Guardian DL Strong Pocket Envelopes Peel/Seal 130gsm Manilla (Pack of 500) E26503
Basildon Bond C5 Pocket Envelope Plain White (Pack of 500) L80118
Q-Connect B4 Envelope 353x250mm Pocket Self Seal 100gsm White (Pack of 250) KF02896
Q-Connect C4 Envelopes Pocket Gummed 80gsm Manilla (Pack of 250) KF3428
Q-Connect C4 Envelopes Pocket Self Seal 80gsm Manilla (250 Pack) 3470
Q-Connect DL Envelopes Wallet Self Seal 100gsm White (Pack of 1000) 7137
Q-Connect Envelope Gusset 324x229x25mm Peel and Seal 120gsm Manilla (Pack of 100) KF3527
Q-Connect Envelope Gusset 406x305x25mm Peel and Seal 120gsm Manilla (Pack of 100) KF3529
Envelope C4 80gsm Manilla Self Seal (Pack of 250) WX3470
Envelopes C4 Pocket Peel and Seal White 100gsm (Pack of 250)
Total 248 products
show per page

Plain envelopes are the unsung heroes of the office and school world. For all communications not done over email, such as physical and formal notices like contracts, newsletters, and important communications, there is no better medium than a letter. Windowless plain envelopes make these kind of business comms easy, and they can form the backbone of your office paper supplies. Depending on your needs, you can choose between manilla envelopes, padded envelopes, and self seal envelopes of different paper qualities and sizes so you can send letters and high-priority documents safely. Padded envelopes, similar to our padded bags, make it easy to send sensitive or priority documents like certificates or contracts and their extra layer of cardboard or manilla help to protect against bending. However, if you need to send packages and deliver items or products as well as documents, then you’ll need to bulk buy packaging materials.

Join Ryman Business with an Enterprise Account to receive paper, packaging, and office supplies for your business or office, or create an education account to receive our unparalleled supplier service for your school or education centre today. If you want to speak to a member of our team, don’t hesitate to contact us with any and all questions.

SEARCH ×