12x15.5 5 Mil Self-Seal Poly Mailers 100-Pack B875100PK
$27.51
/ case of 100$0.28 per mailer
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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 |
| 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.
12x15.5" self-seal poly mailers in 5 mil polyethylene film, packed 100 per pack (SKU B875100PK); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; the self-seal closure needs no tape. Order by the pack of 100.
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.