Custom Poly Mailers
- Lightweight, Tear-Resistant Poly Film for Shipping
- Waterproof & Self-Sealing for Transit Protection
- Custom Sizes & Thickness for Apparel and Soft Goods
Lightweight Poly Mailers Manufactured by Gentle Packing
Poly mailers are designed specifically for shipping lightweight, non-fragile products where outer protection, sealing reliability, and packing speed matter more than rigid structure. Unlike boxes or padded packaging, poly mailers reduce material weight and storage volume while still protecting goods from moisture, dust, and handling damage during transit.
At Gentle Packing, our poly mailer bags are engineered around real shipping workflows. Flat-packed bags reduce warehouse space, self-sealing closures support fast manual or automated packing, and controlled film thickness ensures consistent performance across large batches. This makes poly mailers a practical choice for apparel, soft goods, and ecommerce orders shipped at scale.
Common Types of Poly Mailer Bags We Produce

Gusseted poly mailers feature expandable gussets to accommodate thicker or multi-item shipments without rigid packaging.
Die-cut poly mailer bags include built-in handle cutouts for easier carrying in retail pickup and apparel shipping.

Poly bubble mailer bags combine outer poly film with internal cushioning for added surface protection during shipping.

Holographic poly mailers create color-shifting visual effects that attract attention in marketing-driven or limited-edition deliveries.
Clear frosted poly mailer bags use semi-transparent film to partially show contents while maintaining privacy during transit.

Standard self-seal poly mailers use a permanent adhesive strip for fast, one-time closure.

Resealable zipper poly mailers allow repeated opening and resealing for return-friendly or reusable packaging.

Tamper-evident seal poly mailers show visible damage after opening to help identify unauthorized access.

Easy-open tear strip poly mailers provide tool-free opening while keeping shipments securely sealed.
Poly Mailer Sealing Options
Poly mailer sealing methods are designed to support fast packing while maintaining secure closure during transit. Different adhesive structures are selected based on packing workflow, tamper resistance needs, and whether the mailer is intended for single-use or return shipping.
- Single Peel & Seal: One-time permanent adhesive seal for standard shipping.
- Double Peel & Seal (Returnable): Dual adhesive strips for outbound shipping and customer returns.
- Slider / Reclosable Zipper: Reusable zipper closure for internal packaging or premium apparel.
- Tamper-Evident Hot Melt Glue: High-strength seal resistant to extreme temperatures.
- Tear-Strip / Easy-Open: Built-in tear strip for tool-free opening.


Custom Poly Mailer Size Options
Poly mailer sizes are customized based on the actual product being shipped rather than fixed retail standards. Sizes are specified according to folded apparel dimensions, item thickness, and packing method to ensure a close fit without excess material or wasted shipping space. Both standard shipping sizes and fully custom dimensions are available for bulk orders.
- Small apparel & accessories: 15 × 23 cm / 19 × 27 cm / 23 × 31 cm
- Standard apparel & daily shipping: 25 × 33 cm / 30 × 39 cm
- Multi-item & thicker garments: 37 × 48 cm
- Oversized & bulk orders: 48 × 61 cm / 61 × 61 cm
Poly Mailer Color & Appearance
Poly mailer color and appearance are controlled through base film selection or full-surface printing using CMYK or Pantone color systems. This allows custom poly mailers to maintain consistent brand colors across repeat production while preserving the opacity required for shipping privacy. Both standard colors and fully printed poly mailer bags can be produced for custom poly mailer orders and long-term wholesale programs. Available surface finishes include:
- Matte finish: non-reflective surface with reduced glare and fingerprints
- Gloss finish: smooth, high-shine surface that enhances color contrast
- Spot UV finish: selective glossy coating applied to printed areas

Gentle Packing: Professional Poly Mailer Supplier


Delivery advantage comes from predictable execution across bulk and wholesale poly mailer programs. We confirm specifications early and approve samples before production, which keeps production parameters locked and lead times stable. For custom poly mailer orders, schedules align with order volume, material structure, and shipping destination, helping buyers plan inventory and fulfillment with confidence.
Sustainability forms part of everyday production decisions rather than a standalone claim. When project requirements allow, we offer recycled or PCR-blended polyethylene material while maintaining functional performance for shipping. At the same time, material selection, thickness control, and waste handling follow a long-term-use mindset, ensuring that custom poly mailers support evolving sustainability expectations across different markets.
How Do You Order Custom Poly Mailers in Bulk?

At Gentle Packing, we begin each order by confirming core specifications for bulk and wholesale poly mailer programs. This includes poly mailer size, material structure, thickness, printing method, color system, and sealing options. Application details, such as apparel shipping, ecommerce fulfillment, or bulk poly mailers distribution, help us recommend suitable poly mailer bags for shipping and long-term use.

For custom poly mailer orders, we prepare samples to validate material feel, sealing strength, and print accuracy before mass production. This step ensures poly mailer bags wholesale meet both functional requirements and visual expectations, reducing risk and maintaining consistency across repeat orders.

Once samples are approved, we arrange bulk production based on confirmed quantities and delivery timelines. Poly mailers wholesale orders are manufactured under controlled parameters and packed flat to optimize freight efficiency. International delivery is arranged via express, air freight, or sea freight, depending on destination and urgency.
Related Products
What Are Poly Mailers and How Do They Work in Shipping?
Poly mailers, also commonly referred to as poly shipping bags or plastic mailers, are lightweight packaging solutions made from polyethylene film and designed for mailing non-fragile products. Unlike boxes, poly bags for shipping rely on a sealed plastic structure rather than rigid walls, creating a moisture-resistant outer layer that protects contents from water, dust, and handling exposure during transit.
In shipping operations, poly mailer bags are filled, sealed, and processed through standard parcel networks in the same way as other shipping formats. Their flexible form allows poly shipping bags to move efficiently through automated sorting systems, while their low weight helps control shipping costs. Because plastic mailers are stored and supplied flat, they are widely used in bulk shipping and ecommerce fulfillment environments where speed and space efficiency matter.
How to Label a Poly Mailer?
Poly mailer bags are labeled directly on the outer film surface using adhesive shipping labels applied to the plastic mailer. Most poly shipping bags are produced with smooth, non-porous surfaces that allow labels to adhere securely without peeling during transport. Labels typically include address details, tracking barcodes, and carrier-required information.
For e-commerce and wholesale programs, consistent label placement is important to ensure accurate scanning. Poly bags for shipping are usually labeled on the front panel, away from the sealing flap, to avoid interference with adhesive closure. When poly mailers are custom printed, reserved label areas or lighter backgrounds can be included to improve visibility and scanning reliability.
Poly Mailers vs Paper Mailing Bags
When choosing between poly mailers and paper mailing bags, buyers typically compare mailing conditions, fulfillment efficiency, and order scale rather than packaging appearance alone. For bulk and wholesale programs, how mailing bags perform during handling, storage, and transit is often the deciding factor.
Poly mailers are usually produced from polyethylene-based materials such as virgin LDPE, co-extruded films, or recycled poly blends, offering stable resistance to moisture and tearing. Paper mailing bags are commonly made from kraft paper or recycled paper materials, with performance largely influenced by paper weight and surface treatment.
In high-volume or long-distance mailing operations, poly mailers are often preferred due to their flat-packed storage, faster sealing, and lower impact on mailing weight. Paper mailing bags are more commonly selected for controlled delivery environments or specific brand preferences. Poly mailer bags for clothes are widely used because they fit folded garments closely and help reduce excess volume in mailers’ bulk programs.
Poly mailers are best suited for non-fragile items such as clothing, textiles, soft accessories, and fabric-based products. They are commonly used in e-commerce fulfillment and wholesale distribution where lightweight protection and moisture resistance are required.
Poly mailers are designed to resist moisture and surface tearing during normal parcel handling. Performance depends on film structure and thickness, which are specified based on shipping distance, handling conditions, and order volume.
Yes. Bubble poly mailers are available for shipments that require additional surface protection while maintaining a lightweight mailing format. They are commonly used for small items that need minor cushioning during transit.
Repeat orders are produced based on approved specifications, reference samples, and locked production parameters. This helps maintain stable film thickness, sealing strength, and color accuracy across bulk production runs.
Providing estimated order quantity, target size range, material preference, printing coverage, and destination market helps us prepare accurate pricing and production timelines for poly mailers wholesale orders.










