# Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack

Straame grey self-seal mailing bags are a 50-pack of flexible plastic mailers sized 12 x 16 inches. Their opaque finish is intended to conceal contents, while the adhesive closure suits dispatching clothing, documents and other lightweight items without a box.

- [Original product page](https://bargainpostbox.co.uk/product/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [View offer](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Straame
- Model: Straame
- Category: Office & Stationery > Packaging & Shipping Supplies
- Price: 5.91 GBP
- Previous price: 7.95 GBP
- Discount: 26%
- Price checked: 2026-11-13T06:03:45.592Z
- Rating: 4.6 / 5
- Reviews: 6640

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Opaque grey bags help keep contents out of view during handling and delivery.
- Peel-and-seal adhesive closure is described as a permanent, single-use seal.
- Flexible format is intended for clothing, books, paperwork and other lightweight items.
- The listing describes the material as tear-resistant and water-resistant.

## Pros

- A 50-pack provides a consistent supply for regular mailing or small online-selling operations.
- Self-seal closure avoids requiring separate tape to close each bag, according to the listing.
- Customer feedback reports good adhesion and secure sealing, including use for parcels.

## Specifications

### Identity
- Brand: Straame
### Size and pack
- Pack quantity: 50
- Listed dimensions: 40.6L x 30.5W centimetres
- Title size: 12x16 in
- Shape: Rectangular
### Materials and protection
- Material listed: Plastic
- Colour: Grey
- Opacity: 100% opaque grey material
- Moisture protection: Water-resistant
### Closure and use
- Closure type: Self-Seal
- Recommended uses: Mailing,Packaging

## Before you buy

- The listing uses both 12x16 inch and 40.6L x 30.5W centimetres for dimensions. The inch size is described elsewhere as approximately 305 x 406 mm, so check the intended usable bag dimensions if fit is critical. Its protection and tear-resistance statements are listing claims, not independently confirmed performance guarantees.

## A good fit for

- Online sellers and home businesses mailing folded clothing or other lightweight goods.
- People sending documents, books or office stationery that do not need rigid packaging.
- Buyers who want opaque, flexible mailers with an adhesive closure.

## Less suited to

- Items needing rigid support, cushioning or a box for protection.
- Bulky or heavy parcels that may exceed the bag's intended use for lightweight items.

## Customer feedback

Customer feedback describes the bags as good quality and value, with positive reports about adhesion, sealing and durability. Some customers say they suit Vinted parcels and work with postal services including Royal Mail and EVRI. This is relevant to the stated 12 x 16 inch, self-seal format for lightweight dispatches, but feedback does not establish performance for every parcel or resolve the listing's differing dimension figures.
- Positive themes: Customers report good adhesion and secure seals.
- Positive themes: Feedback describes the bags as durable in shipping and useful for Vinted parcels.
- Positive themes: Customers report effective everyday mailing use.

## Frequently asked questions

### How many bags are included?
The title and listed pack size specify 50 bags.
### What size are the bags?
The title gives 12x16 inches. The listing also reports 40.6L x 30.5W centimetres, while its feature text describes approximately 305 x 406 mm, so verify the size if a close fit matters.
### How do they close?
They use a peel-and-seal adhesive strip. The listing describes the closure as permanent and single-use.
### Are the bags suitable for clothing?
The listing recommends them for clothing and other lightweight items. They are flexible mailers rather than rigid or padded packaging.

## Alternative options

- [Double Dragon 100-Pack 4 Size \(4x9/9x12/10x14/12x16 inches, 25 Each\) Self-Seal Grey Poly Mailer Bags \| Strong, Waterproof, Tamper-Proof Polythene Packaging for Clothes, Parcels \(Also for Storage\)](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [iSOUL Poly Mailer Bags 12x16 Self-Seal, Shipping Envelopes Strong, Waterproof, Tamper-Proof Polythene Packaging for Clothes, Bedding & Parcel Bag Shipping Post Bag Envelopes 50 Pack Grey](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [50 Pack 12x16 Inch Parcel Bags, Grey Self Seal Poly Mailing Postage Bags \| 50 grey self-seal 12x16 inch poly bags for clothing, books and everyday parcel packing, posting, mailing and shipping.](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [BANGYPOST Dark Red Poly Mailers, 17x24 Inch, 50 Pack \| Heavy Duty Waterproof Self-Seal Shipping Bags for Clothing & Parcels, Tear-Resistant Postal Packaging](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [50, Mailing Bags 12x16 Self Seal Grey Mailing Bags \| Delivery Bags Plastic Postage Bags, Parcel Bags \| Postage Bags for Clothes \| Tear Proof Packaging Bags](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [Switory 50Pcs Postage Bags 12x16 Inch Parcel Bags, Strong Heavy Duty Mailing Bags \| Tear-Proof, Self-Seal & Waterproof Packaging for Clothes, Postal & Shipping \| Grey](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [100 Pcs Grey Mailing Bags 12x16 Inch, Self-Seal Poly Postal Envelopes for Parcels, Medium Postage Packaging 305mm x 407mm](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [25 x Strong Large Mailing Postal Postage Bags 17 x 24 Packaging Mailers \[Use in Parcel, Delivery, Shipping, Mail, Package\] \[432mm x 610mm\] Hot Pink](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [5 Extra Large Postage Bags 24"x36" Calzette Strong Mailing Bags for Parcels \| Postage bags for bedding, cushions, duvets, cabin luggage, bulky parcels 61 x 92cm waterproof self-seal \| home & business use](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [JeeJaan® 50 Pink Postage Bags 12x16 in Mailing Bags \(305 x 405 mm\) Poly Mailers Parcel Bags Envelope Courier Shipping Mailers Waterproof and Tear-Proof Postal Mailer Courier Bags](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [G4GADGET 25 Pack Large Grey Mailing Bags 17x24 \[432mm x 610mm\] – Strong Postage Bags for Clothes, Vinted Shipping, Parcel Packaging, Delivery, Mailing & Posting](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [50 Strong 12 x 16 inch Polythene Mailing Postal Bags Plastic Material Mailing Or Posting Parecels Bag For Postages Strong Self Seal](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)

## Add-ons

- [iSOUL Shipping Poly Postal Self Seal Bags in Size 14” x 19” Inch, 25 Pcs, Small Postage Mailing/Packaging Bags 356mm to 483mm](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)
- [Merrimen Strong Heavy Duty Roll Pack Brown Packaging Tape, Secure Sticky Sealing Tape for Parcel Boxes, Moving Boxes, Large P](https://bargainpostbox.co.uk/visit/straame-grey-self-seal-mailing-bags-12x16-50-pack)

## Images

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 1](https://bargainpostbox.co.uk/i/Be95Rzqb2E-y-CL9Klf9J2FrNLTGFg_TOCYa1PBBdNSFHQbiZ0mIw1hEGc3mpr-Kjv0icPT8BUbQPkNrX6mMoYBTrYC3D1gezUsRLF-4GqpdOABo1q2yo3yL.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 2](https://bargainpostbox.co.uk/i/gV8uz-RRrx4sM9FmLRyt77bqpc4kJKYfRHUupMLaKEtKzYJBWLb5CSzUsS0YuKGhOLhWBordyJ_9OjvUXoE2lswB6kz5P7YjFgCp4bw2J8tKwDEKINh2gcIY.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 3](https://bargainpostbox.co.uk/i/3LUMusVr6ub3pkyU7hi6aXGO4W63qBJKO1mDwZT75ZWY-cs2L18LpIAKjxQsGGVd2NDBoOfXNohU7NvWucYYh2TB0AeZbAJBUHadPxJM3oJ4aO-GeyaXIR-V.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 4](https://bargainpostbox.co.uk/i/0PikqTw7G6XS-gPbbUKudXheKX93a3lbgF-ZbwlWW4swsrzdiCSBdBfLs6sIXVM8Q-hQrD3KicHC5rgPoS_iBfsN5Ir4ZKomNQ_uRfZgnUox_rKMKJd1GQk8.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 5](https://bargainpostbox.co.uk/i/6cvZN6SUJeqZfkpKqb8RI3zeE2uWrZ-HEPTVfzTPqMztfF6qQHGZ0Shb9myjwiebPeoAuAJ-ud5naBsja4WWnom0gTrTj7jNSE1Umgj6rKarRhOYyCnv0Ydc.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 6](https://bargainpostbox.co.uk/i/83gTlNw5XGbLdifj_1X3lt6OQx_R5A844B9943KytPL-RJ4tD42PPysw8VnJoAVS-F0_HlRaClmF5GXuSIY5bF6zG4sGSO8zT-_Fn73oHLg2lVxZp41S45Ho.jpg)

![Straame 12 x 16 in Grey Self-Seal Mailing Bags, 50 Pack — 7](https://bargainpostbox.co.uk/i/S_2HiJq-tjiui_ShuDsxoHjHTO08CQXRBQWhBMjYWjxgTmt4VaaA9ZIrNvXTAC_i7djtrXnCqyP_7Eav6-frfqTqME3y2AksFhND4N9Mw5tgC1hZwEZ7ehEo.jpg)