shopping_cart
Shopping Cart

Looks like your cart is empty. Browse  products to get started.

Subtotal:
$0.00

15 x 20 x 4" Expansion Poly Mailers

15" x 20" x 4" White Self-Seal Expansion Poly Mailers with Bottom Gusset for Bulky Items. Durable 2.5 Mil Polyethylene construction for puncture, moisture, tamper and tear-resistance. Case of 100.
  • Dimensions: 15" x 20" x 4" exterior
  • Material: 2.5 Mil Polyethylene
  • Quantity: 100 mailers per case
  • Weight: Approximately 6.66 lbs per case
  • Shipping: Parcel eligible
Stock Number
1
3
5
10+
Add to Cart
Stock NumberEPM152041$29.243$29.245$29.2410+$29.24Add to Cart
15 x 20 x 4" Expansion Poly Mailers
Specifications

Outside W x L x D: 15 x 20 x 4"

Quantity Per Case: 100

Order in Multiples of: 1

Freight Class: 60

Weight: 6.66 EA

NMFC Code: 20475-11

Ships Parcel: Yes

Description

These 15 x 20 x 4 inch expansion poly mailers are built from 2.5 mil polyethylene with a gusseted bottom that opens to accommodate contents up to 4 inches thick. The white exterior accepts adhesive labels, stamps, and direct-print ink cleanly, while the silver interior lining provides an added layer of protection against handling abrasion.

The gusseted design makes these mailers a practical fit for binders, folded garments, bundled documents, boxed accessories, and catalogues — applications where a flat mailer would compress or distort contents. Apparel brands, subscription box fulfillment centers, and B2B distributors shipping print materials all benefit from the added depth.

Each mailer features a self-seal adhesive strip and a double perforation tear strip for tamper-evident closure and clean recipient opening. High-strength seams hold under full load capacity. The 2.5 mil polyethylene construction is puncture, tear, and moisture resistant. Sold in cases of 100; parcel-friendly.

We use cookies to provide essential site functionality for the shopping cart, login, and security. We also use third-party cookies for analytics and advertising, which require your consent. You can accept all cookies, customize your preferences, or reject non-essential cookies. See our privacy policy for more details.