Polythene Mailers - Blue
Tourer Blue Opaque Poly Mailers — Durable, Professional Postal Protection
Tourer blue opaque polythene mailers are a dependable choice for businesses that need a fast, clean and protective way to dispatch goods through the post or courier networks. Designed for everyday fulfilment, these mailers combine a tough polythene construction with an opaque finish to help conceal contents in transit, while keeping parcels lightweight and resistant to moisture.
This product listing covers the Tourer blue opaque poly mailer range in this style and specification. As with many mailing bag ranges, multiple sizes and pack quantities may be available under the same product family—please select the option that best suits your packing process and the items you ship.
Key Features
- Opaque blue film for discretion: The opaque finish helps prevent contents being visible during handling and delivery.
- 70 micron (70mu) thickness: A robust gauge intended for regular shipping and handling demands.
- Lightweight postal packaging: Polythene mailers add minimal weight compared with boxes, helping keep postage costs efficient.
- Moisture-resistant protection: Polythene helps shield goods from rain splashes and damp conditions during transit.
- Fast packing workflow: Mailing bags are designed for quick insertion and sealing, supporting high-throughput dispatch.
- Clean, professional presentation: A consistent blue outer finish gives a tidy appearance for customer deliveries.
Typical Uses
- Clothing and textiles (t-shirts, hoodies, uniforms, soft goods)
- Non-fragile items that do not require rigid protection
- Returns and reverse logistics (where a lightweight outer bag is preferred)
- Warehouse picking and dispatch for e-commerce orders
- Internal transfers between sites where moisture resistance is helpful
Tourer Blue Opaque Poly Mailers — Full Product Guide
Choosing the right mailing bag is about balancing protection, speed, presentation and cost. Tourer blue opaque poly mailers are widely used across fulfilment operations because they are simple to handle, provide a barrier against moisture, and keep parcels compact. This guide explains how these mailers work, what the specification means, and how to select and use them effectively.
How It Works
Polythene mailers are designed to act as an outer protective layer around your goods. Items are placed inside the bag, the opening is sealed, and the parcel is then labelled for shipment. The mailer’s film provides a flexible wrap that conforms to the contents, reducing wasted space compared with oversized cartons.
Because the film is opaque, the contents are less visible during transit. This can be beneficial for customer privacy and for reducing the chance of items being identified while being handled through delivery networks.
Materials and Construction
These mailers are made from polythene film and supplied in an opaque blue finish. The specification for this product includes a 70 micron (70mu) thickness, which is commonly selected for mailing applications where a stronger film is preferred for day-to-day dispatch.
Polythene is valued in shipping because it is lightweight, flexible and resistant to moisture. It also tends to be less prone to tearing than very thin films when parcels are handled repeatedly, stacked, or moved through sorting systems.
Understanding Thickness (70mu)
Micron (mu) is a measurement of film thickness. A 70mu mailer is typically chosen when you want a sturdier bag that can better withstand handling compared with lighter gauges. If you ship items with corners, edges, or slightly heavier contents, selecting a stronger film can help reduce the risk of punctures or splits.
Thickness is only one part of performance—how the bag is packed, sealed and handled also matters. For best results, avoid overfilling and ensure the seal area is clean and properly closed.
Size Selection and Fit (Avoiding Overfill)
Mailing bags perform best when the contents fit comfortably without excessive stretching. A bag that is too small can place stress on seams and corners, increasing the chance of damage. A bag that is too large can leave excess film that may snag during handling or create an untidy parcel.
When selecting a size, consider:
- Product dimensions: Measure the widest and thickest points of your packed item.
- Packaging inside the mailer: If you use inner bags, tissue, or protective wrap, include that in your measurements.
- Seal allowance: Ensure there is enough space at the opening to close the bag without forcing it.
If your operation ships multiple product types, it can be helpful to standardise on a small set of mailer sizes that cover most orders, then keep a larger size available for bulky items.
Floor Type Compatibility (Warehouse & Packing Areas)
These mailers are suitable for typical packing environments including benches, packing stations and warehouse floors. For efficient handling:
- Store cartons of mailers near the packing line to reduce walking time.
- Use a clean, flat surface for sealing to ensure consistent closure.
- Keep labels and documentation ready so parcels can be sealed and labelled in one continuous workflow.
Health and Safety
As with all packaging films, safe handling practices are important:
- Keep away from children: Plastic bags can present a suffocation hazard.
- Maintain tidy work areas: Loose film and packaging can create slip or trip risks in busy dispatch zones.
- Use correct lifting practices: While mailers are lightweight, the contents may not be—pack and lift parcels safely.
Ideal Applications and Use Cases
Tourer blue opaque poly mailers are commonly used where a flexible, moisture-resistant outer pack is appropriate. They are particularly well suited to:
- Soft goods: Clothing, linens, and textiles that do not require rigid protection.
- Non-fragile items: Products that can tolerate normal courier handling without a box.
- High-volume dispatch: Operations that need quick packing and consistent parcel presentation.
- Privacy-conscious shipping: Opaque film helps keep contents discreet.
If you ship fragile items, consider using additional internal protection or selecting a rigid outer pack where appropriate.
Maintenance, Cleaning and Care
Mailing bags are supplied ready to use and do not require maintenance. To keep your packing process smooth:
- Store in a dry area away from direct heat sources.
- Keep cartons closed when not in use to reduce dust and contamination at the seal area.
- Rotate stock so older cartons are used first.
Case Study: Streamlining E-commerce Dispatch
A typical e-commerce packing line aims to reduce handling time per order while maintaining parcel quality. Switching from boxes to polythene mailers for suitable product categories can reduce packing steps: no box erection, less void fill, and faster sealing. The opaque blue finish also provides a consistent outward appearance across shipments, supporting a professional customer experience.
For best results, many teams pair mailers with a simple packing standard: select the correct size, avoid overfill, ensure a clean seal, and apply the shipping label to a flat area for reliable scanning.
Who Is It For?
- Online retailers shipping clothing and other soft goods
- Warehouses and fulfilment centres needing fast packing materials
- Businesses looking for discreet, opaque mailing packaging
- Operations seeking a robust 70mu mailer for everyday dispatch
Colours / Features Available
This product is supplied as a blue opaque polythene mailer. Opaque mailers are chosen when discretion is important and when you want a consistent outer appearance for shipments.
Sizes Available
Multiple sizes and pack quantities may be available within this product family. Select the size option that matches your packed item dimensions and allows comfortable sealing without stretching the film.
Reference notes: Product naming and specification (including Code/No. sizing, dimensions and 70mu thickness) are consistent with third-party listings for Tourer blue opaque polythene mailers.