Best Poly Mailers for Shipping (2026)

Seller Gear · October 2026

A poly mailer is the cheapest legal way to ship most of what small sellers sell — but only for the right products, in the right size. Poly mailers are lightweight, self-sealing plastic shipping bags: no box, no tape, no void fill, and a per-order packaging cost that can drop under ten cents. They are the correct package for soft, non-fragile goods — clothing, towels, bedding, plush, and other items that cannot be crushed or shattered in transit. They are the wrong package for anything fragile, sharp, heavy, or valuable enough that a torn bag becomes a refund: those still need a box or a padded bubble mailer.

What actually matters when you compare them: the usable size first (the seal flap eats roughly 1.5–2 inches of the stated length, and a bulky item needs width for its thickness, not just its flat measurements), the per-bag cost second (pack price divided by bag count — headline prices hide everything), the seal third (a strong self-seal strip should be tamper-evident: once closed, the bag should tear before it reopens), and opacity last (a white outer with a dark inner layer keeps contents private; thin single-color bags can show silhouettes under bright light). The six below cover the jobs sellers actually have, from the standard 10 x 13 clothing mailer to a large 14.5 x 19 bag and a four-size starter pack. Prices move constantly on Amazon, so every pick links to the live price — do the per-bag math in the How to choose section before you check out.

The short answer

• Best overall: Fuxury Poly Mailers 10x13, 100 Pack — white, self-sealing, waterproof and tear-resistant, at about $0.09 a bag at last check. The standard clothing mailer, at the standard price done right. Check price on Amazon →
• Best proven pick: Metronic Poly Mailers 10x13, 100 Pack — the heavily reviewed seller favorite (4.6 stars across tens of thousands of ratings on its listings), with colorful printed designs alongside plain colors. Check price on Amazon →
• Best budget basic: iMBAPrice Poly Mailers 10 x 13, 100 Bags (White) — the plain, no-frills mailer for sellers who want the lowest fuss per order. Check price on Amazon →
• Best boutique look: KKBESTPACK Pink Poly Mailers 10x13, 100 Pack — pink, 3-layer polyethylene, self-seal — the mailer beauty, jewelry, and gift shops use when the package is part of the brand. Check price on Amazon →
• Best large mailer: UCGOU Poly Mailers 14.5x19, Teal, 100 Pack — room for hoodies, blankets, and bedding sets, from a brand that makes its mailers from recycled material and designs them to be recyclable. Check price on Amazon →
• Best starter variety pack: Famagic Poly Mailers Multi Size, 100 Pack — 25 each of 6x9, 10x13, 12x15.5, and 14.5x19 in pink, so a new shop can learn which sizes it actually uses before buying bulk in one size. Check price on Amazon →

Fuxury Poly Mailers 10x13, 100 Pack — the best overall

Start here if you ship clothing and soft goods and just want the default done well. The Fuxury 10x13 is a white polyethylene mailer with a strong self-seal adhesive strip, sold as waterproof and tear-resistant, and at last check it was $8.99 for 100 — about $0.09 a bag, against a $9.99 one-time list price on the same listing. Amazon marks the Fuxury store's mailers as an Amazon's Choice pick, and the size range around this listing runs from 6x9 up to 24x36, so the bag you standardize on has a bigger sibling when an order does not fit. Ten by thirteen is the workhorse size for a reason: a folded t-shirt, a pair of jeans, or a small towel set slides in with room for a thank you card, and the sealed parcel stays flat enough for the cheapest parcel rates.

Honest pros:

• About $0.09 a bag at last check — the per-order packaging cost nearly disappears
• Self-seal strip — no tape, no heat sealer, seconds per parcel at the packing table
• White, opaque look that suits almost any brand and takes a shipping label cleanly
• Full size ladder in the same brand — 6x9 through 24x36 — so reorders stay consistent

Honest cons:

• Plain white only in this listing — boutiques wanting a branded look should take the KKBESTPACK or Metronic prints instead
• No padding — anything crushable or fragile still needs a bubble mailer or a box
• Like all poly mailers, sharp corners inside (shoe buckles, zipper pulls, hangers) can puncture from within — wrap sharp points in tissue first

Metronic Poly Mailers 10x13, 100 Pack — the best proven pick

Metronic is the name sellers land on when they want the reviewed-to-death option: its 10x13 listings carry a 4.6-star average across tens of thousands of ratings, and the brand built that volume by doing the basics — strong adhesive, waterproof polyethylene, and a wide range of colors and printed designs, from plain white and light pink to seasonal patterns. At last check the 100-pack sat around $11.69 (about $0.12 a bag) — a couple of cents more per order than the cheapest white bags, which is exactly the premium a printed design that matches your shop's packaging is worth, and a waste if you ship plain. Buy Metronic when the mailer itself is part of your unboxing; buy the Fuxury or iMBAPrice when it is not.

Honest pros:

• Deeply reviewed — 4.6 stars across tens of thousands of ratings on its listings, the safest track record here
• Colors and printed designs — the mailer can match your brand instead of disappearing
• Strong self-seal adhesive and waterproof polyethylene, per the listing
• Wide size range in the same brand for when orders outgrow 10x13

Honest cons:

• Roughly $0.12 a bag at last check — a real premium over plain white at volume
• Designs rotate and sell out — the exact print you build your packaging around may not be there at reorder time
• Printed bags show scuffs and courier dirt more honestly than plain white does

iMBAPrice Poly Mailers 10 x 13, 100 Bags (White) — the best budget basic

The iMBAPrice mailer is the commodity option, and that is a compliment: a white self-sealing polyethylene bag, 10 x 13 inches, 100 to a pack, sold for years under a listing Amazon has flagged as an Amazon's Choice pick in its category. At last check it was $9.49 with a small discount off $9.99 — about $0.09 a bag. There is no design story and no boutique angle; there is a bag that seals, keeps weather off clothing and soft goods, and stays private thanks to its opaque white finish. For marketplace sellers shipping commodity soft goods — basics, linens, returns — this is the line item you stop thinking about, which is the highest praise a shipping supply can earn.

Honest pros:

• About $0.09 a bag at last check — joint-cheapest per-bag cost on this list
• Long-running listing with an Amazon's Choice flag — a known quantity, not a pop-up brand
• Plain white, opaque, self-sealing — the full basic spec with nothing to go wrong
• 100-count pack is a low-commitment first order

Honest cons:

• Zero brand value — the parcel your customer receives could be from anyone
• No padding and no print — same poly-mailer limits as every pick here, with no upside to offset them
• White shows courier scuffs — cosmetic, but boutiques notice

KKBESTPACK Pink Poly Mailers 10x13, 100 Pack — the best boutique look

KKBESTPACK's pink 10x13 is built for shops whose packaging photographs well: a pink self-sealing mailer made of 3-layer extruded polyethylene, which the brand describes as puncture-resistant and waterproof, with a white outer construction and a silver inner layer on its black/white lines that shields contents from view — the pink version carries the same boutique brief. At last check it was $13.35 for 100 (about $0.12–0.13 a bag). That is the joint-highest per-bag cost here, and it is still pennies: for a beauty, jewelry, candle, or gift shop, a mailer that arrives looking like the brand is the cheapest marketing in the parcel. The same brand's black 10x13 lists at a lower per-bag cost if you want the construction without the pink.

Honest pros:

• Pink boutique look — the mailer matches beauty, jewelry, and gift packaging instead of clashing with it
• 3-layer extruded polyethylene — the brand's stated construction for puncture and tear resistance
• Self-seal and waterproof, per the listing — no workflow change from plain bags
• 100-count pack — a season's worth for a small boutique without a bulk commitment

Honest cons:

• About $0.12–0.13 a bag at last check — you are paying for the color and the look
• Pink will not suit every brand — neutral or masculine-leaning shops should take the white picks above
• Still unpadded — pair it with tissue or a small box inside for anything with edges

UCGOU Poly Mailers 14.5x19, Teal, 100 Pack — the best large mailer

When the order is a hoodie, a blanket, a bedding set, or two of anything, 10x13 stops working and sellers do something expensive: they reach for a box. The UCGOU 14.5x19 exists to keep those orders in a bag. It is a teal polyethylene mailer with a self-adhesive seal, sold as waterproof and tear-proof, in a 100 pack — and UCGOU states its poly mailers are made from recycled materials and are recyclable themselves, which matters to sellers whose customers ask. The price on this listing moves and was not shown in the last check, so use the live price and the per-bag math below before ordering — large mailers should still land in the tens of cents per bag, not dollars. Keep a pack of these next to your 10x13s and the "too big for a bag" problem mostly disappears.

Honest pros:

• 14.5x19 inches — hoodies, blankets, bedding, and multi-item orders stay in a mailer, not a box
• Teal color stands out in a pile of white parcels — easy to spot your own shipments
• Made from recycled material and recyclable, per the brand — a real answer when customers ask
• Self-sealing, waterproof, and tear-proof, per the listing

Honest cons:

• Check the current price before buying — it was not displayed at last check, and large-bag pricing varies by color
• Oversized for single small items — a half-empty large mailer can fold, catch, and price worse than the right-size bag
• Teal is a brand statement whether you wanted one or not — the same brand sells plainer colors in this size

Famagic Poly Mailers Multi Size, 100 Pack — the best starter variety pack

New shops make one of two mistakes: they buy 500 bags in a size they guessed, or they buy four sizes and use one. The Famagic variety pack is the way to learn instead: 100 pink mailers split evenly — 25 each of 6x9, 10x13, 12x15.5, and 14.5x19 — self-sealing, and sold as waterproof and tear-proof. Run a month of orders through it and your reorder writes itself: you will know exactly which size your products eat and which size is still sitting there. The trade is honest — a variety pack's per-bag cost (check the current price; it was not displayed at last check) will not beat a bulk single-size pack, and 25 of your main size runs out fast once you know what it is. Treat this pack as tuition, not as your standing supply.

Honest pros:

• Four useful sizes in one pack — 6x9 for small items, 10x13 standard, 12x15.5 and 14.5x19 for bulky orders
• Lets a new shop measure its real size mix before committing to bulk
• Pink, self-sealing, waterproof and tear-proof, per the listing — no spec sacrifice for the variety
• One purchase covers the whole packing table for the first weeks

Honest cons:

• Check the current price — it was not displayed at last check, and variety packs usually cost more per bag than single-size bulk
• Only 25 of each size — your main size will run out while the odd size lingers
• Pink only in this assortment — plain-color shops should assemble the same test from the white picks above

Side-by-side

How to choose

Size for the sealed bag, not the flat bag. The self-seal flap takes roughly 1.5–2 inches off the usable length, and a bulky item consumes width as it gains thickness: a hoodie that measures 11 x 14 folded flat can still refuse a 10x13 mailer once it is an inch thick. The field test beats the tape measure — put the product, its thank you card, and any tissue in the bag before you seal a production run, and size up (12x15.5, then 14.5x19) the moment you have to force the flap. Most clothing sellers end up standardizing on 10x13 for singles and 14.5x19 for doubles and bulky pieces, which is why the Fuxury + UCGOU pairing covers most shops.

Do the per-bag math, honestly. Divide the live pack price by the number of bags — not by a headline "piece count" that folds in extras. At the prices checked for this guide the spread is roughly $0.09 to $0.13 a bag: on 100 orders a month that is a $4 difference, which means per-bag cost should almost never outrank fit and look. Where it does matter is at 1,000+ orders, where four cents a bag is $40+ a month — at that point buy your main size in the largest plain pack and keep the printed or pink bags for the orders where the unboxing earns it.

Know what a poly mailer cannot do. No pick on this page has padding or crush resistance. Anything fragile, rigid-and-pointed, heavy enough to stress the seams, or valuable enough that a torn bag is a disaster goes in a bubble mailer or a box instead — that is not upsell caution, it is the difference between a 9-cent package and a full refund plus return postage. Inside the bag, protect it from its own contents: fold zipper pulls and buckles inward, and put one layer of tissue between anything sharp and the film.

Seal it like it will be tested — because it will. Press the full width of the adhesive strip firmly, keep the strip free of tissue and product edges (one fiber in the seal is a leak path), and leave a little slack rather than vacuum-tight tension, which turns every corner into a puncture candidate. Then finish the system around the bag: our packaging supplies guide covers the tissue, stickers, and inserts the mailer carries, our thank you cards guide covers the insert that goes inside it, and our label printers guide covers printing the label that goes on it.

FAQ

What size poly mailer do I need for a t-shirt?
A single folded t-shirt, hoodie-free, fits a 10x13 mailer comfortably — that is the standard clothing size and the size four of the six picks here come in. A hoodie, a sweatshirt, jeans plus a top, or two shirts together usually need the next step up: 12x15.5 or 14.5x19. Measure the folded item, add its thickness on both dimensions, and remember the seal flap shortens the usable length by roughly 1.5–2 inches.

Are poly mailers cheaper than boxes?
For soft goods, decisively: roughly $0.09–0.13 a bag here versus a small box plus tape plus void fill, and the mailer's near-zero weight keeps you in the cheapest postage tiers for lightweight parcels. The saving reverses the moment the product needs protection — a damaged fragile item costs a refund, return postage, and the box you should have bought, all at once.

Can I ship anything in a poly mailer?
No. Poly mailers are for soft, non-fragile, non-sharp goods: clothing, textiles, plush, and similar. Fragile items, items with sharp points that cannot be folded away, heavy items that strain seams, liquids, and high-value items belong in padded mailers or boxes. Carriers also prohibit or restrict certain contents outright — check your carrier's current rules for anything unusual before it goes in any package.

Do poly mailers count as waterproof?
The picks here are sold as waterproof or water-resistant polyethylene, which in practice means rain, puddles, and a wet doorstep will not reach the contents through the film. The weak point is never the film — it is the seal. A strip pressed over tissue or a product edge can channel water in, so keep the adhesive path clean and fully pressed, especially in wet seasons.

Are poly mailers recyclable?
Polyethylene mailers are generally store drop-off recyclable (the plastic-film stream), not curbside recyclable in most U.S. programs — check your local film-recycling rules. UCGOU states its mailers are made from recycled materials and are recyclable; whichever brand you buy, printing the honest disposal route on your thank you card is the part customers actually see.