12x15.5 Poly Mailers - Self-Seal, 100-Pack
$24.33
/ case of 100$0.24 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
12" × 15 1/2"
Board / material
2.5 Mil Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 12" × 15 1/2" (L × W) |
|---|---|
| Board / material | 2.5 Mil Polyethylene |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 4.06 lb |
| Outer carton (shipping) | 13.25 × 9.75 × 2.25 in |
| LTL freight class | Class 60 |
| GTIN | 841436059008 |
| SKU | B875100PK |
About this item
SKU B875100PK — 12" × 15 1/2", 2.5 Mil Polyethylene, White. Sold as a case of 100, shipped from US warehouses.
self-seal poly mailers designed for e-commerce brands who demand durability and presentation. Each 12x15.5 " mailer features 2.5 mil polyethylene construction, puncture resistance, and an easy tear strip. Order 100-pack cases and ship with confidence.
Large poly mailers: Good fit for shipping clothing, apparel, soft goods, returns, catalog packs, and other non-fragile ecommerce orders. These mailers help ecommerce teams and small businesses choose protective, right-sized packaging for common fulfillment workflows.
Common questions
Will these mailers hold up to rough handling in transit?
Yes. The 2.5 mil polyethylene construction with reinforced seams withstands rough sorting, stacking, and carrier handling. Puncture and tear resistance protect contents even if packages are overpacked or compressed during delivery.
Can I print shipping labels and barcodes on these mailers?
Absolutely. The white outer surface accepts adhesive labels, thermal printing, markers, and stamps. The smooth finish ensures labels adhere securely without peeling during transport.
How does the self-seal closure work?
Simply peel the integrated tear strip along the top seam to reveal the pre-activated adhesive strip underneath. Press firmly along the seal line for a secure, tamper-evident closure that cannot be opened without visible damage.
Are these mailers waterproof for outdoor or wet environments?
Yes. The polyethylene material provides excellent moisture and water resistance, protecting contents from rain, humidity, and moisture exposure during ground or parcel shipping, making them ideal for seasonal or international deliveries.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.