Boxes aren’t the only way to ship products. In fact, for certain items, they’re not even the best way. This is where flat mailers come in handy.
They can be sturdy enough to keep your items safe, slim enough to qualify for lower shipping rates, and stylish enough to make your brand look put-together. If you’ve been defaulting to boxes for everything, here’s why you should reconsider... and the types of products you can confidently send in a flat mailer.
Why you should opt for mailers instead
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You save money on every shipment, especially with carriers that price by dimensions.
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You ship faster with packaging that’s ready to go in seconds.
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You reduce waste with minimal, eco-conscious materials.
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You improve your customer experience with neat, easy-to-open packaging that still looks professional.
Celestial Tan Mailers 10" x 13"
What you can ship in flat mailers
1. Enamel Pins & Small Badges
Flat, durable, and often on backing cards.
2. Keychains
Metal or acrylic keychains can be shipped flat and secured with a small backing card or display insert.
3. Small Tech Accessories
Phone cases, charging cables, pop sockets, USB drives — all slim and resilient enough for flat mailers.
4. Jewellery in Slim Boxes or Cases
Minimalist jewellery packaged in a rigid presentation box fits easily and stays protected. Or you can place them in a glassine bag for a chic touch.
5. Makeup Palettes & Compact Cases
Powder compacts, slim palettes, or lip kits in sturdy retail packaging travel well in a rigid flat mailer.
Pro Tip: A Box-in-a-Bag Hack
Still want to use a box for certain items? You can save on shipping with a clever USPS trick known as the Cubic Softpack method.
Here’s how it works: instead of paying by the full dimensions of a box, you place your small box inside a poly mailer or padded flat mailer. USPS then charges you by the mailer’s length and width only—not the height of the box inside. This method, sometimes called the “box-in-a-bag” hack, can cut your shipping costs dramatically while still keeping your product protected.
It’s officially allowed, easy to set up on most shipping platforms, and pairs perfectly with Impack’s durable flat mailers.
💡 Try this with our mailers to keep costs low without sacrificing presentation or protection.
6. Coasters & Small Home Goods
Cork or resin coasters, small trinket dishes, or other flat, durable home items are perfect for flat mailers.
7. Gift Cards & Loyalty Packs
Plastic gift cards with sleeves, or small branded loyalty kits, ship neatly without risk of bending.
8. Magnets
Flat and sturdy, perfect for flat mailers with a branded insert.
9. Candy
Individually wrapped sweets, small chocolate bars, or flat confectionery packs fit securely in flat mailers, making them ideal for giveaways, care packages, or online orders. Here's a guide to shipping candy!
Ready to streamline your shipping?
Switch to flat mailers and make every order lighter, neater, and more memorable. Explore Impack’s eco-friendly, stylish mailers today and find the perfect fit for your brand.
