Top 9 Expandable Envelopes 9x12x2 – Envelope Mailers

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1. Poly Bag Guy


100/Case, White, 9" x 12" x 2", Tyvek® Expandable Envelope

Poly Bag Guy #ad - Tyvek envelopes provide superior puncture, tear and moisture protection. Feature self-seal closure. Envelopes expand to hold bulky items. Constructed from 18 lb. Olefin. Ten times stronger than paper envelopes.
BrandPoly Bag Guy #ad
ManufacturerPoly Bag Guy #ad
Height2 Inches
Length12 Inches
Width9 Inches
Part NumberPBGTYE09122WE

2. Quality Park


Quality Park Expansion Envelopes, 25 per Pack, Brown Kraft, 93334, Redi-Strip, 9 x 12 x 2

Quality Park #ad - Durable: made from extra heavyweight 40 lb. Less yuck: we promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required. Redi-strip: no moisture required with this Redi-Strip closure. Brown Kraft. 2": gusseted sides expand up to 2" to accommodate extra thick mailings. Great value: conveniently packed in 25 pack to reduce the frequency of repurchasing.
BrandQuality Park #ad
Manufacturer0 #ad
Height1.7 Inches
Length14.2 Inches
Weight0.06 Pounds
Width9.1 Inches
Part Number93334

3. Tyvek


12" Length x 9" Width x 2" Height, White Case of 100, Aviditi TYE09122WE Tyvek Olefin Expandable Envelope

Tyvek #ad - Envelopes expand to hold bulky items. Constructed from 18 lbs olefin. Tyvek envelopes provide superior puncture, tear and moisture protection. Feature self-seal closure. Ten times stronger than paper envelopes.
BrandTyvek #ad
ManufacturerQuality Park #ad
Weight0 Pounds
Part NumberTYE09122WE

4. EGPChecks


50 Envelopes, Size 9 x 12 2 Inch Expansion, EGP Double Window Tyvek Expandable Mailing Envelope

EGPChecks #ad - Price is for 50 Envelopes. Size 9 x 12, with a 2 inch expansion, Peel and Close. 14 pound Tyvek Stock. 400 sheet capacity.
BrandEGPChecks #ad
ManufacturerEGP #ad
Weight3 Pounds
Part Number80386



Clear Poly Reusable File Folders Project Paper Documents Organizer for Office School Home, 1-1/6" Expansion, Side Load, FANWU Plastic Letter Size Envelopes with Button & String Tie Closure

FANWU #ad - Expandable letter size plastic envelopes :size 13x10 inch 33x25cm, with 1-1/6" gusset. Thicker and more flexible material allow us keep long tern of the important documents and photos, offer longer serving life help us saving more money. Very suitable for the storage of office documents and the application of formal occasions.

Plastic folders with string tie closure :full size flap with traditional button and string tie closure, its strings are longer and more durable. Visible in clear plastic envelopes 8. 5 x 11 :fanwu poly envelopes are clear, see-through, give clear view of contents, makes finding documents so easy without opening it. Expanding plastic envelopes have 4 times capacity of the normal plastic envelopes. It also can help your storage children puzzles, insurance documents, craft items, travel, projects, and business trip.

Clear plastic envelopes are ideal way to organize your important A4/ Letter size papers and documents, work, the envelopes bags can be used at school, table games. Storage capacity beyond your imagination, it will become your ideal storage tool. We use compressed packaging to help you reduce shipping fee and get a more favorable file envelopes set. Sturdy & durable plastic file envelopes :fanwu plastic file envelopes made of high quality Poly material, Acid free and PVC free.
BrandFANWU #ad
ManufacturerFANWU #ad
Part NumberFWPE-03

6. Quality Park


10 x 13 x 1 1/2, 18lb Case of 100, Survivor R4200 Tyvek Expansion Mailer, White

Quality Park #ad - Use for bulky items. Use instead of cartons or boxes. Tyvek white expansion envelope features a Flap-Stik self-adhesive closure. Resists punctures, tears and moisture. Expands on sides to fit binders, books, reports.
BrandQuality Park #ad
Manufacturer0 #ad
Height5 Inches
Length15.25 Inches
Weight4 Pounds
Width11.25 Inches
Part NumberR4200



Plastic Binder Letter Holder for School and Office Supplies, 10 Pack Expandable Binder Pocket, Letter Size, Binder Organizer, 11 Holes Clear Poly Binder Envelope with Snap Closure, 3/4-inch Gusset

QSSRWNAO #ad - It’s more sturdy and well constructed. Easy to find the contents you need. Make your storage and organization easier and more efficient. 11 holes punched binder pocket dividers can fit for 2/3/4 ring binder.

It can hold up to 120 sheets of US letter size 8" x 11" papers. Packaging and sizethe package of the plastic binder pocket will comes a set of 24 11-hole transparent document folders. Great for education, projects, archiving, office daily work, teaching and homework assignments, filing and storage with our durable 11 Holes Clear Poly Binder Pocket. Out size 11. 53" x 8. 85". The snap button closure ensures your files safe.

Perfect to organize your paper sheets, documents files, coupons, gift cards ect, tickets, bills, craft projects, receipts, . Transparent poly envelope with durable snap buttonClear document envelopes file folders with a clear view for quick and easy identification. Enough quantity that can meet your needs for 11. 53 x 8. 66 inches 29. 5 x 22 cm.
ManufacturerQSSRWNAO #ad
Part Number009

8. Abgream


Abgream 7 Pack File Folder, Expandable Poly Envelopes Plastic Document Folder Button Closure Waterproof File Pouch with 7pcs Black Gel Ink Pens for School Office Supplies Assorted Colors

Abgream #ad - Each envelope with a label pocket better help you sort through the various files. Each plastic folder can hold about 1000 sheets of paper. Practical design - the see-through sleek document folder with assorted colors keeps contents visible and makes finding documents so easy without opening your envelopes.

7 x black gel ink pen. Multifunctional use - portable to carry it everywhere, bills, office, paperwork, receipts, photos, gift cards, documents, such as for school, pens, bank, small toys, magazine, puzzles, crayons, meeting room, tickets, home use. Premium material - made from super thick polypropylene material, the poly envelopes are durable and recyclable, no odor, tear and water resistant, non-toxic, environmentally friendly, not easy to break and deformation.

Simple and fashion. Button design for conveniently opening and securing contents, lets you no longer worry about file loss. File folder size approx: 14. 37 x 11. 02 x 3. 5inch / 36. 5 x 28 x 9cm l x W x H. Ideal for long term storage your important document. File folder color is: red, yellow, blue, orange, purple, green, Black.
BrandAbgream #ad
ManufacturerAbgream #ad
Part NumberAbgream-297251

9. EnDoc


Tyvek Envelopes – 9x12 Mailer Tear Resistant Envelopes Tyvek® Construction & Easy Self Seal Closure –Bright White – Bulk Pack of 50 – 9 x 12 Inch

EnDoc #ad - Superior shipping protection – double reinforced construction, Opaque Color & Super Sticky Glue Offers Maximum Security for Confidential Business Mail. Heavy duty envelopes – they are practically indestructible and provide superior protection from tears, punctures and moisture.

Buy checkomatic & enjoy the best prices in the industry; lighter weight saves on postage Half The Weight Of Paper Envelopes; Envelope Packs Available in 6x9, 9x12, 10x13, 10x15 & save big – stock up on bulk supplies & 12 x 15 1/5. Also, they are self-sealing and secure. Indestructible dupont design – lightweight but strong, durable Tyvek Material Resists Ripping, Punctures, tearing, Rain, Moisture & Other Common Postal Threats. Convenient self seal closure – peel back the sticker to quickly & send; Open End Catalog Orientation Enables Fast Paper & Effortlessly Seal & Packet Stuffing.
BrandEnDoc #ad
ManufacturerEnDoc #ad
Part NumberEn09