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Text weight paper stock, these envelopes will hold up against damage and will look great no matter what you use them for. You can even use them as shipping envelopes for inventory items. Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal.
Made from 70 lb. It is important to note that most square envelopes require additional postage. If this natural shade of off-white doesn't match your color scheme, we offer a variety of other options. Use these for square notes and cards to place on top of holiday gifts or even to accompany birthday, Mother’s Day, baby shower, bridal shower, or wedding gifts.

Printable & customizable: if you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can easily print your company logo or brand name on them using digital printing presses and some home printers. Use to accompany gifts: these small envelopes are constructed from heavyweight LUX paper stock, Mother’s Day, Valentine’s Day, bridal shower, baby shower, making them durable and perfect for a variety of occasions.
Square envelopes: designed to fit our 9 1/4” x 9 1/4” card, tasteful thank you cards, these 9 1/2” x 9 1/2” envelopes also work well for mailing square photos, large invitations, and more. The square envelope design and modern back flap give them a clean-cut look. It is important to note that most square envelopes require additional postage. Classic color: if you want a set of durable envelopes, these envelopes will hold up against damage and will look great no matter what you use them for. If this classic shade of white doesn't match your color scheme, this set is the item for you.


Great for home, interoffice or mailing. Brown kraft 28 lb stock: perfect for everyday home and business use, Quality Park's clasp envelopes are constructed from heavyweight 28 lb.
The flaps close with full flap gum to endure humid climates to ensure the envelope stays sealed so your contents don't fall out! 9 x 12 size: perfect size for mailing and storing 8-1/2 x 11 sized documents flat when folding is undesirable. Reusable clasp: designed for repeated use, school, office, double prong metal clasp is durable and eyelets are reinforced.


These square flap envelopes are also perfect for direct mail, letters, postcards, and more, thank-you cards, holiday cards, RSVPs, and 5Ó x 5Ó photos so you can depend on them for all your special mailing needs. They are printable on both digital and offset commercial printers.
Made from 80 lb. Text weight / 32 lb. It couldn't be easier! this type of adhesive is great for business applications, press, wedding announcements, and personal notes. Made from lux midnight black paper stock with a side seam construction, these envelopes are thick and durable, or invitations. Durable & reliable: these envelopes make excellent invitation holders and are 5 1/2" x 5 1/2" 139. 7mm x 139.


1. JAM Paper
#ad
JAM PAPER 9 x 9 Square Invitation Envelopes, White, 50/Pack
#adJAM Paper #ad - Envelope features: Straight flap gum closure, high quality Smooth paper finish. 50 envelopes per pack. Size: 9 x 9 inches. White Envolope. These envelopes are perfect to use for sending invitations, RSVP's, gifts for birthdays, thank you cards, greeting cards, graduations, holidays and more.More information #ad
Brand | JAM Paper #ad |
Manufacturer | JAM Paper & Envelope #ad |
Height | 9 Inches |
Length | 9 Inches |
Weight | 1.4 Pounds |
Width | 0.1 Inches |
Part Number | 4232i |
More information #ad
2. Juvale
#ad
4 1/8 x 9 1/2 Inches, Brown, Juvale 100 Pack #10 Kraft Business Envelopes, 100 Count, Value Pack Square Flap Envelopes
#adJuvale #ad - Multiple uses: these blank envelopes are great for mailing holiday cards, greeting cards, announcements, invitations, letters, cards, photos, personal mail and direct Mail. Value pack: make sure to always have some business envelopes on hand when you need them.More information #ad
Easy to seal gum flap enclosure: Apply water to edges of flap and stick for these self sealing envelopes. 100 kraft #10 invitation envelopes: includes a pack of 100 Kraft 110gsm business envelopes self seal #10 Dimensions: each number 10 envelope measures 4 1/8 x 9 1/2 inches.Brand | Juvale #ad |
Manufacturer | Juvale #ad |
Weight | 1.37 Pounds |
Part Number | LeJuvo-CM-050817-09-V1 |
More information #ad
3. Envelopes Store
#ad
Natural 50 Qty., 9 x 9 Square Invitation Envelopes w/Peel & Press
#adEnvelopes Store #ad - Natural color: if you want a set of durable envelopes, this set is the item for you. Square envelopes: designed to fit our 8 3/4” x 8 3/4” card, tasteful thank you cards, these 9” x 9” envelopes also work well for mailing square photos, large invitations, and more. It couldn’t be easier! This type of adhesive is perfect for when you need to seal large quantities of envelopes.Text weight paper stock, these envelopes will hold up against damage and will look great no matter what you use them for. You can even use them as shipping envelopes for inventory items. Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal.
More information #ad
Printable & customizable: if you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can easily print your company logo or brand name on them using digital printing presses and some home printers. Made from 70 lb. It is important to note that most square envelopes require additional postage. If this natural shade of off-white doesn't match your color scheme, we offer a variety of other options. Use these for square notes and cards to place on top of holiday gifts or even to accompany birthday, Mother’s Day, baby shower, bridal shower, or wedding gifts.
Brand | Envelopes Store #ad |
Manufacturer | Envelopes.com #ad |
Part Number | 8585-03-50 |
Model | 8585-03-50 |
More information #ad
4. Envelopes Store
#ad
LUXPaper 9 1/2 x 9 1/2 Square Envelopes in 70 lb. Bright White for 9 1/4 x 9 1/4 Cards, Business Event Invites, and Thank You Notes, 50 Pack White, Mailing Wedding Invitations
#adEnvelopes Store #ad - Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesn’t want to lick or use a moistener on every single envelope — it’s a huge time-saver! Simply peel off the protective strip, press, and seal. Made from 70 lb. You can even use them as shipping envelopes for inventory items.Printable & customizable: if you want to customize or label your envelopes with zero hassle, you’re in luck! These envelopes are printer-friendly, so you can easily print your company logo or brand name on them using digital printing presses and some home printers. Use to accompany gifts: these small envelopes are constructed from heavyweight LUX paper stock, Mother’s Day, Valentine’s Day, bridal shower, baby shower, making them durable and perfect for a variety of occasions.
More information #ad
Text weight paper stock, we offer a variety of other options. It couldn’t be easier! This type of adhesive is perfect for when you need to seal large quantities of envelopes. Square envelopes: designed to fit our 9 1/4” x 9 1/4” card, tasteful thank you cards, these 9 1/2” x 9 1/2” envelopes also work well for mailing square photos, large invitations, and more. The square envelope design and modern back flap give them a clean-cut look. It is important to note that most square envelopes require additional postage. Classic color: if you want a set of durable envelopes, these envelopes will hold up against damage and will look great no matter what you use them for. If this classic shade of white doesn't match your color scheme, this set is the item for you.
Brand | Envelopes Store #ad |
Manufacturer | Envelopes Store #ad |
Part Number | 11017-50 |
More information #ad
5. Juvale
#ad
4 1/8 x 9 1/2 Inches, Value Pack Square Flap Envelopes, Gold, 50 Pack #10 Gold Business Envelopes, 50 Count
#adJuvale #ad - Value pack: make sure to always have some business envelopes on hand when you need them! Easy to seal gum flap enclosure: Apply water to edges of flap and stick. Multiple uses: great for mailing holiday cards, Greeting Cards, Letters, Announcements, Cards, Photos, Invitations, Personal Mail and Direct Mail.More information #ad
50 gold #10 invitation envelopes: Includes a pack of 50 Gold 110gsm #10 Business Envelopes. Dimensions: measures 4 1/8 x 9 1/2 inches.Brand | Juvale #ad |
Manufacturer | Juvale #ad |
Part Number | 050817-10-V1 |
More information #ad
6. Quality Park
#ad
Great for Filing, Storing or Mailing Documents, Quality Park 9 x 12 Clasp Envelopes with Deeply Gummed Flaps, 28 lb Brown Kraft, 100 per Box 37890
#adQuality Park #ad - Brown kraft stock designed to give contents extra protection during mailing, storage and handling. Packed in 100 count: so many uses means supply is depleted quickly! Conveniently packed in 100 count to reduce frequency of purchasing.Great for home, interoffice or mailing. Brown kraft 28 lb stock: perfect for everyday home and business use, Quality Park's clasp envelopes are constructed from heavyweight 28 lb.
More information #ad
Gummed flap: in addition to the clasp closure, these quality park envelopes have a moisture activated secure seal with deep Gumming on the flap to create a permanent seal. The flaps close with full flap gum to endure humid climates to ensure the envelope stays sealed so your contents don't fall out! 9 x 12 size: perfect size for mailing and storing 8-1/2 x 11 sized documents flat when folding is undesirable. Reusable clasp: designed for repeated use, school, office, double prong metal clasp is durable and eyelets are reinforced.
Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 3.75 Inches |
Length | 14 Inches |
Weight | 4 Pounds |
Width | 9.1 Inches |
Part Number | QUA37890 |
Model | 37890 |
More information #ad
7. Quality Park
#ad
Self-Sealing Closure, 100/Box QUA44082, 28 lb. White Wove, Quality Park 12" x 15-1/2" Redi-Strip Envelopes
#adQuality Park #ad - White wove stock for extra protection. Unique double-flap design keeps the gum from sticking before use; simply raise the lower flap and press to seal. 12" x 15-1/2" envelopes – the perfect size for holding larger documents flat.More information #ad
Redi-seal closure does not require moisture to seal. Manufactured from heavyweight 28 lb. Conveniently packed in 100 count to reduce frequency of purchasing.Brand | Quality Park #ad |
Manufacturer | Quality Park #ad |
Height | 3 Inches |
Length | 16 Inches |
Weight | 6.2 Pounds |
Width | 12.5 Inches |
Part Number | QUA44082 |
Model | QUA44082 |
More information #ad
8. Envelopes.com
#ad
50 Pack, Envelope Size 5 1/2 x 5 1/2 Black, LUX Paper Square Invitation Envelopes for 5 1/4 x 5 1/4 Cards in Midnight Black, with Peel & Press Seal, Printable Envelopes for Invitations
#adEnvelopes.com #ad - Peel & press seal: the self-seal design of these envelopes is perfect for anyone who doesnÕt want to lick or use a moistener on every single envelope Ñ itÕs a huge time-saver! Simply peel off the protective strip, and seal. If black isnÕt the color youÕre looking for, this is the item for you.These square flap envelopes are also perfect for direct mail, letters, postcards, and more, thank-you cards, holiday cards, RSVPs, and 5Ó x 5Ó photos so you can depend on them for all your special mailing needs. They are printable on both digital and offset commercial printers.
More information #ad
Printable & customizable: if you want to customize or label your envelopes with zero hassle, youÕre in luck! These envelopes are printer-friendly, so you can use your home laser or inkjet printer to address them. No need to worry about smudging or jamming because these envelopes are made for compatibility with most printer models. Made from 80 lb. Text weight / 32 lb. It couldn't be easier! this type of adhesive is great for business applications, press, wedding announcements, and personal notes. Made from lux midnight black paper stock with a side seam construction, these envelopes are thick and durable, or invitations. Durable & reliable: these envelopes make excellent invitation holders and are 5 1/2" x 5 1/2" 139. 7mm x 139.
Brand | Envelopes.com #ad |
Manufacturer | Envelopes.com #ad |
Height | 0.01 Inches |
Length | 5.5 Inches |
Weight | 0.25 Pounds |
Width | 5.5 Inches |
Part Number | F-8515-B |
More information #ad
9. Desktop Publishing Supplies, Inc.
#ad
Heavyweight 28lb White 6" x 9" Envelopes w/Self Seal Flap, 25 Envelopes
#adDesktop Publishing Supplies, Inc. #ad - Desktop publishing Supplies Brand White 6" x 9" Envelopes. Easy to use peel & Seal Self Sealing Flap. Inkjet & Laser Compatible. Made from heavyweight 28lb bond / 70lb text 105 gsm Paper Stock.More information #ad
Brand | Desktop Publishing Supplies, Inc. #ad |
Manufacturer | Desktop Publishing Supplies, Inc. #ad |
Part Number | 57312 |
Model | 57311-100 |
More information #ad
10. Juvale
#ad
25 Pack 9x11.5 Stay Flat Cardboard No Bend Shipping Envelopes for Mailing Magazines, Comic Books or Photo Documents, Rigid Mailers
#adJuvale #ad - Stock up for online business use, personal use and office use. Dimensions: each photo mailers measures 9 x 11. 5 inches. Value pack: make sure to always have some rigid mailers on hand. Sturdy design: the cardboard envelopes are made of thick cardstock that will keep your documents free of bending and wrinkles for mailing and shipping.More information #ad
Self-adhesive convenience: Strong glue built into the cardboard mailer design provides a tight seal. Easily mail document: these "stay flat" envelopes are the perfect solution for photos, comic books, CDs, pictures, sending a wide range of documents.Brand | Juvale #ad |
Manufacturer | Juvale #ad |
Part Number | SZZTJ |
More information #ad