Purple Mailing Bags 10×14" (254×355 mm) – Premium Strong Self-Seal Postal Bags for E-commerce Shipping
Purple Mailing Bags 10×14" (254×355 mm) – Premium Strong Self-Seal Postal Bags for E-commerce Shipping
Guaranteed safe & secure checkout
Purple Mailing Bags 10×14" (254×355 mm) made from 60 µm, 100% recycled LDPE (code 4) for strong, professional shipping. These premium postal bags are moisture-proof, water-resistant and fully opaque to protect customer privacy and brand presentation. Strong enough for daily e-commerce use and trusted by online sellers across the UK, these self-seal mailers are a step up from standard grey mailing bags in both strength and appearance.
Used by clothing brands, subscription services, fulfilment centres and online sellers who want packaging that looks professional and protects orders in transit.
Not the size you need? See all sizes.
Why choose this 10×14" size?
This 10×14" (254×355 mm) size is one of the most popular everyday mailing sizes used by online retailers. It offers more internal length than 9×12", which gives better room for folded clothing, padded items and small boxed goods. This reduces seam stress, prevents bursting during transit and makes packing quicker and cleaner. The premium purple colour also improves customer presentation, making it ideal for brands who want parcels to look professional and consistent across marketplaces like Shopify, Etsy, TikTok Shop, Amazon and eBay.
Real use examples
- 1–2 folded T-shirts (S–XL), leggings or a lightweight jumper
- Paperback book with card backing or corner pads
- Small gift item in a compact retail box
- Cosmetics bundle or accessories order
- Online boutique orders with return slips
- Subscription products or sample packs
Fit & packing guidance
This mailing bag works best with soft goods up to 240×330×40 mm. Always press out excess air before sealing to keep parcels compact and reduce Royal Mail postage costs. For larger jumpers or products requiring added packaging space, move up to 12×16". If posting a single lightweight item such as a T-shirt or paperback, step down to 9×12" for a more secure, fitted pack.
Key benefits
- Premium strength 60 µm film – thicker and tougher than standard grey bags
- 100% recycled LDPE (code 4) – strong and eco-responsible
- Moisture-proof / water-resistant – protects against rain and damp during delivery
- Fully opaque purple – protects privacy and delivers a clean branded look
- Fast self-seal strip – secure, tamper-evident closure without tape
- Lightweight & cost-efficient – reduces postage weight compared with boxes
- Ideal for e-commerce brands – trusted for Shopify, Etsy, eBay & Amazon shipping
Available pack sizes
Suitable for both small businesses and regular online sellers, these 10×14" purple mailing bags are available in:
- Pack of 100 – ideal for small businesses starting out
- Pack of 300 – best for growing Etsy, TikTok and boutique sellers
- Pack of 500 – efficient for regular weekly dispatch
- Pack of 1000 – best value per unit for high-volume e-commerce stores
These bulk options are ideal for Shopify, Etsy, Amazon FBA, TikTok Shop and warehouse dispatch operations.
Specifications
| Product | Purple Mailing Bags 10×14" |
|---|---|
| Size | 10×14" (254×355 mm) |
| Material | 100% recycled LDPE (code 4) |
| Film Thickness | 60 µm (standardised) |
| Closure | Peel-and-seal, permanent |
| Water Protection | Moisture-proof / water-resistant |
| Colour | Purple (fully opaque) |
| Recyclable | Yes – return to carrier bag recycling points |
Eco & materials
These bags are made using 100% recycled LDPE (code 4). This material is durable, flexible and tear-resistant, yet can still be recycled again where soft plastic collection is available. These are not biodegradable or compostable bags, but they are a more responsible alternative to virgin plastic mailing bags. Choosing recycled LDPE helps reduce landfill waste and supports a circular material economy.
Strength & protection
The 60 µm film thickness provides a higher level of tear and puncture resistance compared to standard grey mailers. This makes them suitable for clothing brands, online gift stores, subscription services and fulfilment centres that require strong, dependable packaging for daily use. The permanent self-seal adhesive strip prevents tampering and accidental opening during transit.
Storage & performance
For best results, store mailing bags at 13–21°C in a dry environment away from direct sunlight. If stored in a cold warehouse, allow the adhesive strip to reach room temperature before use to maintain seal strength.
Lightweight = cheaper postage
Compared with cardboard boxes, mailing bags reduce parcel weight, helping businesses ship orders more cost-effectively with Royal Mail, Evri, DPD, Yodel and other couriers. The slim format helps stay within Large Letter and Small Parcel size limits where possible.
Size comparison guide
| Option | Size | Best For |
|---|---|---|
| Step down | 9×12" | Single T-shirt, paperback book, small items |
| This size | 10×14" | 2 T-shirts, light jumper, small boxed goods |
| Step up | 12×16" | Hoodies, jeans, larger apparel or bulky mail |
Packing tips
- Fold clothing neatly to reduce wasted space
- Remove excess air before sealing for lower postage
- Add bubble wrap or card for fragile/pointed edges
- Use a document wallet for invoices or packing slips
Related products
Complete your dispatch setup:
Order today for fast UK delivery and dependable, professional packaging.
Frequently Asked Questions
Are these bags moisture-proof?
Yes. These purple mailing bags are made from 60 µm co-extruded LDPE which is moisture-proof and water-resistant. They protect parcels against rain and handling during delivery.
What material are they made from?
They are made from 100% recycled LDPE (code 4), which is a strong and flexible plastic film commonly used in e-commerce packaging. It is tamper-resistant and suitable for postal use.
What fits inside a 10×14" mailing bag?
This size fits 1–2 folded T-shirts, leggings, a jumper, cosmetics bundles or a paperback book with a protective card backing. If your item is bulkier, use the 12×16" size instead.
Are they strong enough for online shipping?
Yes. These bags are 60 µm thick, which provides extra tear resistance compared to standard grey mailing bags. The permanent self-seal strip provides a secure closure for shipping.
Are these bags recyclable?
Yes. These bags are made from recyclable LDPE (code 4). They can be recycled at carrier bag recycling points found in most UK supermarkets.
Do I need extra tape to seal them?
No. Each bag comes with a built-in peel-and-seal adhesive strip that provides a strong, tamper-proof bond. Tape is only recommended for very heavy or high-value items.
Is the purple colour fully opaque?
Yes. The purple material is completely opaque and does not show the contents inside, making it suitable for privacy and professional parcel presentation.
Royal Mail 24 Tracked
Dispatched same day if ordered before 5 pm Monday to Friday. Please allow up to 1-2 days for delivery.
£1.99
DPD Next Day
Dispatched same day if ordered before 3 pm Monday to Thursday. Not available to Scottish Highlands & Islands.
£4.99
Free on orders over £100