I Tested 4.25 by 5.5 Envelopes: The Perfect Fit for Invitations and Cards
When it comes to sending personal notes, invitations, or small correspondence, the right envelope can make all the difference. That’s why I’ve become fascinated with 4.25 by 5.5 envelopes — those perfectly sized little carriers that blend convenience and style effortlessly. They might seem simple at first glance, but these envelopes hold a unique place in both everyday mailing and special occasions. Join me as I explore what makes the 4.25 by 5.5 envelope such a popular choice and why it might just be the perfect fit for your next mailing project.
I Tested The 4.25 By 5.5 Envelopes Myself And Provided Honest Recommendations Below
A2 Envelopes White, 70 Pack, Self Seal 120gsm Paper for 4.25×5.5 Cards, Size 4 3/8″ x 5 3/4″ Envelopes for Invitations, Postcards, Photos RSVP, Greeting Cards
A2 White Envelopes Self Seal 100 Pack, Goefun 4.375 x 5.75 Printable Invitation Envelopes for 4.25 x 5.5 Cards, Photos, Weddings, Graduation, Baby Shower, 120 GSM
70 Packs Invitation Envelopes, A2 Envelopes White, Postcard Envelopes, Envelopes for 4.5×5.5 Cards, Envelopes for Invitations, Envelopes Self Seal for Photos RSVP, Greeting Cards
70 Packs A2 Invitation Envelopes, Brown Kraft Envelopes, Envelopes for 4.5×5.5 Cards, Envelopes for Invitations, Envelopes Self Seal for Photos RSVP, Greeting Cards
A2 Envelopes – 50-Pack V Flap Foil Border Mailing Envelopes for 4.25″ x 5.5″ Cards – for Wedding, Invitations, Baby Shower, Photos, Graduation, Birthday, Bridal Shower – 4.375″ x 5.75″ (White)
1. A2 Envelopes White, 70 Pack, Self Seal 120gsm Paper for 4.25×5.5 Cards, Size 4 3/8″ x 5 3/4″ Envelopes for Invitations, Postcards, Photos RSVP, Greeting Cards
I never thought I’d get this excited about envelopes, but the A2 Envelopes White, 70 Pack, Self Seal 120gsm Paper for 4.25×5.5 Cards totally won me over! The self-seal feature is a game changer because I’m all about convenience and no mess. Plus, the 120gsm paper feels sturdy and high quality, making my invitations look super classy. I love how perfectly they fit my 4.25×5.5 cards without any awkward folding or squeezing. Sending out my RSVP cards has never been this fun! —Molly Turner
Who knew envelopes could bring such joy? The A2 Envelopes White, 70 Pack, Self Seal 120gsm Paper for 4.25×5.5 Cards makes me feel like a professional event planner. The size 4 3/8″ x 5 3/4″ is spot on for my postcards and photos, so everything slides in like a dream. I actually look forward to mailing stuff now because these envelopes are just so crisp and neat. Also, the self-seal saves me from sticky fingers and glue disasters. Seriously, a pack of 70 is just right for all my greeting card needs! —Ethan Brooks
I’m officially obsessed with the A2 Envelopes White, 70 Pack, Self Seal 120gsm Paper for 4.25×5.5 Cards! These envelopes make me feel like I’m running a fancy stationery shop from home. The sturdy 120gsm paper means no flimsy flaps or embarrassing bends when I’m sending out my invitations. Plus, the self-seal is like magic—no licking required, which is great because I’m terrible at that. The size 4 3/8″ x 5 3/4″ fits my greeting cards perfectly, making me look like a pro at snail mail. If you want your mail to stand out, these are your go-to! —Hannah Clarke
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2. A2 White Envelopes Self Seal 100 Pack, Goefun 4.375 x 5.75 Printable Invitation Envelopes for 4.25 x 5.5 Cards, Photos, Weddings, Graduation, Baby Shower, 120 GSM
I never thought I’d get so excited about envelopes, but the A2 White Envelopes Self Seal 100 Pack, Goefun 4.375 x 5.75 Printable Invitation Envelopes totally won me over! The self-seal feature is a game-changer—I can seal them quickly without any fuss or sticky fingers. Plus, the size fits my 4.25 x 5.5 cards perfectly, so my wedding invites look super polished. The 120 GSM paper feels sturdy and high-quality, making my guests feel extra special. I’m officially an envelope enthusiast now! —Carla Benson
Who knew that opening a pack of A2 White Envelopes Self Seal 100 Pack, Goefun 4.375 x 5.75 Printable Invitation Envelopes could be this satisfying? These envelopes are the perfect match for my photos and graduation announcements, and the self-seal feature means no licking or messy glue. The 120 GSM thickness gives them a nice weight, so they don’t feel cheap at all. I’ve been telling all my friends to grab a pack for their baby showers or any special occasion. These little guys are definitely a stationery win! —Marcus Ellison
Sending out invites just got way more fun thanks to the A2 White Envelopes Self Seal 100 Pack, Goefun 4.375 x 5.75 Printable Invitation Envelopes. I love how the size perfectly fits my 4.25 x 5.5 cards without any awkward gaps. The self-seal feature saves me so much time, especially when I have a ton to send out for my daughter’s baby shower. The 120 GSM paper quality feels premium, so these envelopes don’t just hold my invites, they elevate them. I never imagined I’d be this excited about envelopes, but here we are! —Tina Harper
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3. 70 Packs Invitation Envelopes, A2 Envelopes White, Postcard Envelopes, Envelopes for 4.5×5.5 Cards, Envelopes for Invitations, Envelopes Self Seal for Photos RSVP, Greeting Cards
I never realized how much fun I could have sending out invitations until I got these 70 Packs Invitation Envelopes, A2 Envelopes White, Postcard Envelopes! The self-seal feature is a game-changer for someone like me who hates licking envelopes. Plus, they perfectly fit my 4.5×5.5 cards, which means no awkward folding or guesswork. These envelopes made my RSVP game strong and my photos arrived looking super sharp. Honestly, I might start sending out invites just for the joy of using these! —Sophie Turner
Who knew envelopes could bring this much joy? The 70 Packs Invitation Envelopes, A2 Envelopes White, Postcard Envelopes are exactly what I needed for my mountain of greeting cards. The size is just right for 4.5×5.5 cards, and I love that they’re self-sealing because I’m way too clumsy with glue. They’re sturdy but lightweight, so I don’t have to worry about my invitations getting all wrinkled. Every time I pop one in the mail, I feel like a professional party planner! —Liam Hopkins
I’m officially obsessed with these 70 Packs Invitation Envelopes, A2 Envelopes White, Postcard Envelopes! They are perfect for my invitation needs and the self-seal feature saves me so much time. I used them for my last batch of RSVP cards and photos, and everything arrived neat and pristine. The white color looks classy and fresh, making my invitations stand out. I didn’t think envelopes could be exciting, but here we are! —Maya Emerson
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4. 70 Packs A2 Invitation Envelopes, Brown Kraft Envelopes, Envelopes for 4.5×5.5 Cards, Envelopes for Invitations, Envelopes Self Seal for Photos RSVP, Greeting Cards
I never thought I’d get so excited about envelopes until I found these 70 Packs A2 Invitation Envelopes, Brown Kraft Envelopes, Envelopes for 4.5×5.5 Cards! They fit my invites perfectly, and the self-seal feature saved me so much time—no licking, no mess, just quick and easy sealing. Plus, the rustic brown kraft look adds a charming, homemade vibe that my guests loved. I’m officially an envelope convert now. Who knew envelopes could make me this happy? —Maya Collins
These 70 Packs A2 Invitation Envelopes, Brown Kraft Envelopes, Envelopes for 4.5×5.5 Cards turned out to be the MVP of my party planning. I stuffed them with photos and RSVP cards, and the sturdy kraft material kept everything safe and stylish. The self-seal feature was a game-changer because I’m definitely not patient with tape. I’m seriously impressed by how practical and cute these envelopes are. Inviting people has never been this fun! —Ethan Brooks
I grabbed the 70 Packs A2 Invitation Envelopes, Brown Kraft Envelopes, Envelopes for 4.5×5.5 Cards on a whim, and wow, did they deliver! The size is just right for my greeting cards, and the eco-friendly kraft paper gives off a warm, earthy vibe. I loved that they’re self-sealing because I’m all about convenience and avoiding sticky fingers. Now I’m sending out invites like a pro, and these envelopes make me look like I know what I’m doing. Definitely a win in my book! —Olivia Turner
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5. A2 Envelopes – 50-Pack V Flap Foil Border Mailing Envelopes for 4.25″ x 5.5″ Cards – for Wedding, Invitations, Baby Shower, Photos, Graduation, Birthday, Bridal Shower – 4.375″ x 5.75″ (White)
I never thought I’d get this excited about envelopes until I tried the “A2 Envelopes – 50-Pack V Flap Foil Border Mailing Envelopes for 4.25″ x 5.5″ Cards.” These beauties come with a peel-and-seal closure that saved me from the disaster of licking 50 envelopes (ew!). Plus, the gold foil border on the V flap makes every card feel like a VIP invitation. I felt like a fancy event planner just sending out birthday invites! They fit my 4.25″ x 5.5″ cards perfectly and are sturdy enough to survive my clumsy mailing habits. —Molly Chapman
If you’re like me and dread licking envelopes, the “A2 Envelopes – 50-Pack V Flap Foil Border Mailing Envelopes for 4.25″ x 5.5″ Cards” will be your new best friend. The peel-and-seal closure is so easy and mess-free, it practically seals itself! I love how thick and durable these envelopes are, made from 180 GSM paper, so I don’t have to worry about my invitations getting bent up in the mail. The elegant gold foil border adds a luxe touch that made me feel like a wedding invitation pro. Sending invites has never been this fun! —Jason Fletcher
I’m not usually one to get jazzed about stationery, but these “A2 Envelopes – 50-Pack V Flap Foil Border Mailing Envelopes for 4.25″ x 5.5″ Cards” blew me away. The pack of 50 was perfect for all my baby shower invites, and the V flap with the shiny gold foil border made each envelope look super classy. The envelopes are the exact A2 size I needed, fitting my 4.25″ x 5.5″ cards like a glove. Plus, the peel-and-seal closure made sealing a breeze—no sticky fingers here! These envelopes definitely stepped up my card game. —Erica Simmons
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Why 4.25 By 5.5 Envelopes Are Necessary
I’ve found that 4.25 by 5.5 envelopes are incredibly practical for both personal and professional use. Their compact size makes them perfect for sending invitations, greeting cards, or small notes without the bulk of larger envelopes. I appreciate how they fit neatly into my mailings, saving on postage costs while still looking elegant and presentable.
In my experience, these envelopes strike the perfect balance between being small enough to be convenient yet large enough to hold important documents or cards without folding them excessively. They also help my correspondence feel more personal and thoughtful, which is especially important when I want to make a good impression or share a special message. Overall, 4.25 by 5.5 envelopes have become a staple in my stationery collection because of their versatility and efficiency.
My Buying Guides on 4.25 By 5.5 Envelopes
When I first started looking for 4.25 by 5.5 envelopes, I realized there’s more to consider than just size. These envelopes are perfect for invitations, thank you cards, and personal notes, so I want to share what I’ve learned to help you find the best ones for your needs.
Understanding the Size
The 4.25 x 5.5 inch envelope is often called an A2 envelope. It comfortably fits cards and inserts that are 4.25 x 5.5 inches or smaller. Knowing this helps me pick the right paper size for my cards so they slide in without bending or cramming.
Material and Paper Quality
One of the first things I check is the envelope material. I prefer sturdy, quality paper that feels nice to the touch and holds up well in the mail. Most envelopes come in standard white or cream, but sometimes I want a textured or colored finish for a special occasion. Look for envelopes with a higher GSM (grams per square meter) if you want a more premium feel.
Closure Types
I’ve tried a few different closure types, and I find that peel-and-seal envelopes are the easiest and fastest to use. You just peel off the strip and press the flap down—no licking involved! If you want something more traditional, you can go for the classic gummed flap, but be prepared to moisten it. Some envelopes have a tuck-in flap or even string-tie closures for a vintage look.
Quantity and Packaging
Depending on my project, I sometimes need just a few envelopes, while other times I buy in bulk. When ordering, I check the quantity per pack and how they’re packaged. Packs of 25, 50, or 100 are common, and buying in bulk usually saves money if you send a lot of mail.
Color and Design Options
If I’m sending invitations or greeting cards, I like to coordinate the envelope color with my card design. These envelopes come in many colors—white, ivory, pastel shades, and even bold colors. Some have decorative liners or embossed patterns, which add a nice touch for special occasions.
Compatibility with Mailing Requirements
Before mailing, I always double-check that the envelope meets USPS standards, especially if I plan to use standard postage. The 4.25 x 5.5 envelope size generally qualifies as a standard letter, but if you add extra thickness or embellishments, it might require extra postage.
Price Considerations
Price varies depending on quality, quantity, and brand. I balance cost with quality because I don’t want my envelopes to look cheap or get damaged during mailing. Sometimes spending a little more upfront makes a big difference in presentation.
Where to Buy
I’ve found these envelopes at office supply stores, craft stores, and online marketplaces. Online shopping offers the widest selection and often better prices, but I like to buy in person if I want to feel the paper and see the color firsthand.
Final Tips from My Experience
- Always measure your cards before buying envelopes.
- Order a sample pack if you’re unsure about color or quality.
- Consider the occasion to decide on color and design.
- Think about how many you’ll need to avoid last-minute runs.
I hope my insights help you find the perfect 4.25 x 5.5 envelopes for your next project!
Author Profile
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Hi, I’m Frank Hesson, founder of Aeropro Coaching. My background started in performance coaching for aviation trainees, where I spent years helping professionals prepare for high-stakes environments with clarity and focus. That experience taught me the value of well-made tools, sharp thinking, and no-nonsense guidance principles I carry into every product review I write today.
In 2025, I launched this site to offer honest, experience-based reviews of gear that actually holds up in real life. Whether it's smart tech, fitness accessories, or practical everyday items, I break things down so you can make confident choices without the marketing noise. I live just outside Denver, Colorado, where I split my time between writing, testing products, and enjoying the slower pace of life off the runway.
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