8.5 x 33" Self-Seal Poly Mailers 2.5 Mil White - Case of 100
$63.05
/ case of 100$0.63 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
8 1/2" × 33"
Board / material
2.5 Mil Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 8 1/2" × 33" (L × W) |
|---|---|
| Board / material | 2.5 Mil Polyethylene |
| Color | White |
| Sold as | Case of 100 |
| Order in multiples of | 1 |
| Case weight | 8.3 lb |
| Outer carton (shipping) | 11.5 × 9.75 × 3.0 in |
| LTL freight class | Class 60 |
| GTIN | 841436089777 |
| SKU | LPM833 |
About this item
SKU LPM833 — 8 1/2" × 33", 2.5 Mil Polyethylene, White. Sold as a case of 100, shipped from US warehouses.
The 8.5 x 33" Self-Seal Poly Mailers 2.5 Mil White is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 8.5" x 33"; white material; 2.5 Mil; case of 100. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
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 protect products from moisture during shipping?
Yes. The 2.5 mil polyethylene construction provides moisture resistance to protect contents from humidity, rain, and water exposure during transit. However, these are not fully waterproof; for guaranteed water protection, consider our weatherproof mailer upgrades for high-value shipments.
Are the adhesive strips reliable, or will packages come open in transit?
The integrated self-seal adhesive strips are engineered for secure closure with a simple press-and-seal application. Ensure clean contact with the sealing strip for maximum adhesion. Most e-commerce brands report zero issues with package openings when properly sealed.
Can these 33-inch mailers accommodate different product sizes?
The 8.5 x 33" dimensions are optimized for long, narrow items like rolled textiles, scarves, and folded apparel. Products shorter than 33" will fit easily; the length is designed to minimize wasted space while maintaining professional appearance.
How many mailers are in each case, and what's the cost per unit at bulk?
Each case contains 100 individual mailers, making this an ideal bulk option for e-commerce brands shipping 20-40+ orders weekly. Per-unit costs decrease significantly with multi-case orders; contact our sales team for volume pricing and freight quotes.
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.