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Buying Guide

Types of Mailers: Corrugated, Poly & Mylar Bags Compared

By BoxYourBrand Editorial Team·

Types of mailers for ecommerce and subscription brands fall into four families: corrugated mailer boxes, poly mailers, bubble mailers, and barrier film bags (including customizable mylar bags). The right choice depends on product fragility, weight, branding goals, and ship cost — not habit alone.

This guide compares types of mailer formats, covers common sizes like 10 x 13 poly mailers, and explains specialty options from blue mailer box branding to mylar bags for freeze dried food. For MOQ and ordering paths, see where to order custom mailer boxes and the mailer box size guide.

Types of mailers compared

Mailer type Material Best for Branding Typical MOQ
Corrugated mailer box E-flute / B-flute Unboxing, subscriptions, fragile goods Full interior + exterior print 50–250 launch
Poly mailer LDPE / HDPE film Apparel, soft goods, documents 1–4 color logo 500–2,500
Bubble mailer Film + bubble lining Jewelry, electronics accessories Logo on exterior 500–2,500
Padded paper mailer Kraft + fiber padding Eco DTC, cosmetics Flexo / digital 1,000+
Mylar / barrier bag Metallized film laminate Food, coffee, collectibles Surface print 1,000–5,000

Browse mailer boxes and poly mailers in the product catalog.

Corrugated mailer boxes

Corrugated mailers are self-locking boxes engineered for the unboxing moment. They protect better than film, accept interior messaging, and photograph well for social sharing.

Blue mailer box programs use colored board or full CMYK exterior print to create instant brand recognition on the porch. Any Pantone or hex color is achievable on custom mailer boxes with logo — blue is simply a popular DTC choice.

Design subscription boxes build on mailer construction with:

  • Fixed outer dimensions month to month
  • Custom inserts and dividers for curated SKU layouts
  • Interior lid print for onboarding and retention messaging

See subscription box packaging for industry-specific format pairings.

Poly mailers and common sizes

Poly mailers are the most cost-efficient ship format for non-fragile, lightweight products. Standard stock sizes include 7×10“, 9×12“, 10 x 13 poly mailers, and 14×19“ — each tuned to product thickness and carrier rate tiers.

Size Typical product fit
7“ × 10“ Socks, small accessories, samples
9“ × 12“ T-shirts, flat goods
10“ × 13“ Hoodies (folded), books, multi-item
14“ × 19“ Large apparel, bulk soft goods

Custom printed poly mailers add logo, return address panels, and tamper-evident seals. Compostable and recycled film options support sustainability claims when certified.

Mylar bags and barrier film mailers

Customizable mylar bags use metallized or high-barrier laminates to block moisture and oxygen — critical for coffee, jerky, freeze-dried meals, and sensitive supplements.

Use case Why mylar
Freeze-dried food Extended shelf life, moisture barrier
Coffee / tea Aroma and freshness retention
Comics & collectibles Protection from humidity and handling
Supplements Light and oxygen sensitivity

Mylar bags comics collectors use are often paired with rigid backing boards — a mylar bag with box shipper combination protects edges in transit. For food programs, confirm food-grade film and ink compliance when quoting mylar bags for freeze dried food.

Film mailers differ from corrugated mailers: lower unit cost and weight, less crush protection, no rigid structure for heavy items.

How to choose a mailer type

  1. Fragility — Fragile items need corrugated or bubble; soft goods ship in poly.
  2. Branding priority — Interior print and rigid unboxing favor corrugated mailers.
  3. Weight and DIM — Film mailers minimize dimensional weight on light parcels.
  4. Barrier needs — Oxygen-sensitive products need mylar or high-barrier pouches, not plain poly.
  5. Volume — Poly breaks favor 1,000+ units; corrugated mailers often start at 50 units.

Use the packaging size wizard to match product dimensions to format before quoting.

Order custom mailers

Not sure which types of mailers fit your catalog? Get a free quote with product dimensions, monthly ship volume, and branding goals — we will recommend corrugated, poly, or mylar specs with MOQ tiers that match your stage.

Types Of Mailers — FAQs

What is a mailer?

A mailer is a lightweight ship container for ecommerce — usually a corrugated self-locking box, poly film envelope, bubble-lined pouch, or padded paper mailer. Mailers protect products in transit and often carry brand print on the exterior. Compare formats in this guide and on mailer boxes.

What are the main types of mailers for ecommerce?

The four most common types are corrugated mailer boxes (branded unboxing), poly mailers (lightweight apparel ship), bubble mailers (cushioned small goods), and padded paper mailers (eco alternative). Custom mailer boxes suit subscription and premium DTC; poly mailers suit high-volume soft goods.

What size is a 10 x 13 poly mailer?

A 10" × 13" poly mailer fits folded apparel, books, and flat goods up to roughly 1" thick. Interior usable space is slightly less after seal flap. Confirm product dimensions before ordering bulk 10 x 13 poly mailers.

What are customizable mylar bags used for?

Customizable mylar bags provide moisture and oxygen barrier for coffee, freeze-dried food, supplements, and collectibles. They accept exterior logo print and resealable zipper options for retail and ship programs.

What is a blue mailer box?

A blue mailer box is a corrugated ecommerce mailer with a colored exterior — often brand blue or kraft-dyed board — used for recognizable doorstep branding. Full CMYK print achieves any brand color on custom mailer boxes.

How do design subscription boxes differ from standard mailers?

Design subscription boxes emphasize interior presentation, consistent monthly dimensions, and insert layouts for curated SKUs. They use corrugated mailer construction with custom dielines tuned to recurring product mixes.

Related Reading for Types Of Mailers

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