Silver Metallic Finish Bubble Bag Mailers
Silver metallic bubble bag mailers, clean, contemporary, and with the reflective outer that communicates premium quality across health, beauty, technology, and fashion. Bubble lining, peel and seal strip. Available from Postal Packaging in a range of sizes.
For the same silver tone in a more restrained matt finish, our Silver Matt Finish Bubble Bag Mailers offer the same protection with a contemporary surface that doesn't rely on shine, or browse the full Matt Finish Bubble Bag Mailers collection.
Size Guide
Common sizes and what they fit (all measurements are internal).
| Size | Dimensions | What Fits |
|---|---|---|
| C7Business Card | 81 × 114 mm | Business cards, gift vouchers, small notes |
| C6A6 / Greeting Card | 114 × 162 mm | A4 folded in quarters. Greeting cards, invitations, A6 flyers |
| DLStandard Letter | 110 × 220 mm | A4 folded in thirds. Letters, invoices, compliment slips |
| B6Between C5 & C6 | 125 × 176 mm | A5 folded, small booklets, thicker greeting cards |
| C5A5 / Half A4 | 162 × 229 mm | A4 folded in half. Brochures, catalogues, A5 documents |
| C4A4 Flat | 229 × 324 mm | A4 flat, unfolded. Legal documents, artwork, certificates |
| C3A3 Flat | 324 × 458 mm | A3 flat, unfolded. Prints, posters, large artwork |
| Square 155CD / Square Card | 155 × 155 mm | Square greeting cards, CD sleeves, small prints |
| Square 220Large Square | 220 × 220 mm | Vinyl singles (7"), square art prints, large cards |
| Size | Dimensions | What Fits |
|---|---|---|
| Extra Small~150 × 210 mm | 150 × 210 mm | Jewellery, accessories, small folded garments |
| Small~220 × 300 mm | 220 × 300 mm | A4 flat. Books, folded T-shirts, small gifts |
| Medium~250 × 350 mm | 250 × 350 mm | Clothing, footwear (small), boxed gifts, A4+ items |
| Large~305 × 405 mm | 305 × 405 mm | Folded garments, homeware, larger books, A3 items |
| Extra Large~430 × 560 mm | 430 × 560 mm | Bulky clothing, large homeware, multiple items, bedding |
| Board Back A4Stiffened mailer | ~230 × 310 mm | A4 flat, rigid protection. Artwork, photos, certificates |
| Board Back A3Stiffened mailer | ~330 × 450 mm | A3 flat, rigid protection. Large prints, posters |
| Size | Dimensions (L × W × D) | What Fits |
|---|---|---|
| TinySmall parcels | Up to 200 × 150 × 100 mm | Small gifts, candles, cosmetics, stationery |
| SmallShoebox range | ~300 × 200 × 150 mm | Shoes, books, small electronics, bottled products |
| MediumStandard dispatch | ~400 × 300 × 200 mm | Clothing, homewares, gift sets, multiple items |
| LargeBulk dispatch | ~500 × 400 × 300 mm | Larger homewares, glassware, fragile items with padding |
| Extra LargeHeavy duty | 600 mm+ across | Bulky goods, trade orders, oversized products |
| Royal Mail PIPLarge Letter | 353 × 250 × 25 mm | RM Large Letter format. Flat items, documents, thin products under 25mm depth |
Delivery & Returns
Delivery & Returns
We take your security seriously. From browsing to checkout, your personal and payment information is protected with robust industry-level encryption, giving you complete confidence when placing your order.
Full Specification For Our Silver Metallic Finish Bubble Bag Mailers
Trusted UK Packaging & Envelope Supplier
Postal Packaging began with a small team, years of industry experience and a clear goal: to make buying envelopes and packaging easier for businesses and everyday customers. What started from home has grown into a warehouse operation in Cardiff, Wales, supplying envelopes, postal packaging and packing supplies across the UK.
Our team understands the details that matter, from choosing the right envelope size to finding postal boxes, padded mailers, board backed envelopes, cardboard packaging and more sustainable packaging options for different mailing needs. Whether you are sending office post, e-commerce orders, gifts, documents or larger parcels, we are here to help you find packaging that works.
We are proud of the journey we have taken and the customers who have grown with us along the way. With secure online ordering, quick dispatch, volume discounts and friendly support, Postal Packaging combines real product knowledge with a practical, personal approach to packaging and envelopes.
What Our Customers Say
See why we’re trusted as by thousands of UK businesses for packaging and envelopes through verified customer reviews.
Read more reviews at Trustpilot
Aimée Thompson
Charlotte Goodman-Brooks
SR
Grace
Rebecca R
Bernie Webber
Paul Craig
Richard
Fantastic Customer Service
Frequently Asked Questions
Before you place your order, here are answers to the questions we get asked most often. From delivery timescales and costs to returns and bulk discounts, everything you need to know is below.
When Will My Order Arrive?
When Will My Order Arrive?
Orders dispatched from our Cardiff warehouse are delivered by DPD in 1 to 3 business days. Orders fulfilled from our European warehouse arrive in 7 to 10 business days via DHL. All orders placed before 14:00 GMT on a working day are processed the same day. Orders placed after 14:00, or on weekends and public holidays, are dispatched the next working day. Your estimated delivery window is shown at checkout.
How Much Does Delivery Cost?
How Much Does Delivery Cost?
Standard tracked delivery is £5.95 including VAT. Orders over £30 including VAT qualify for free delivery. If your order includes items from both our UK and European warehouses, a split shipment rate of £11.90 including VAT applies and you will receive two separate deliveries. This will be clearly shown at checkout.
What Is A Split Shipment?
What Is A Split Shipment?
A split shipment happens when items in your order are held across both our Cardiff warehouse and our European warehouse. In this case your order arrives in two separate deliveries: the UK portion via DPD in 1 to 3 business days, and the European portion via DHL in 7 to 10 business days. A combined shipping fee of £11.90 including VAT applies and this will be clearly indicated at checkout before you complete your order.
How Can I Track My Order?
How Can I Track My Order?
Once your order has been dispatched you will receive a shipping confirmation email containing your tracking number and a direct link to the courier's tracking page. You can also track your order at any time using our Track Your Order page. DPD orders can also be tracked directly at dpd.co.uk and DHL orders at dhl.com. If you have not received your confirmation email, please check your spam folder first and then get in touch with us.
Can I Change Or Cancel My Order?
Can I Change Or Cancel My Order?
We process orders quickly, so please contact us as soon as possible if you need to make any changes. Orders that have already been dispatched cannot be cancelled, but we can help with delivery address updates where possible. Contact our team via the contact form with your order number and we will do everything we can to assist you promptly.
How Do I Return An Order?
How Do I Return An Order?
Returns must be initiated within 14 days of delivery via our returns online form here. Once submitted, the team will review your request and be in touch with the next steps.
What If There Is A Problem With My Order?
What If There Is A Problem With My Order?
If anything arrives damaged, incomplete, or not as described, please contact us via the contact form as soon as possible with your order number and a description of the issue. We aim to resolve all problems quickly and will arrange a replacement, credit, or refund depending on the circumstances.
Do You Offer Discounts For Larger Orders?
Do You Offer Discounts For Larger Orders?
Yes. Volume discounts are applied automatically on the product page, with no discount code required. Delivery charges are calculated separately at checkout.
For orders over 5,000 units, please contact us using the online form linked below the tier pricing table, and we’ll provide a bespoke quote tailored to your requirements.