G4 Padded Envelopes – Durable, Eco-Friendly Mailers

You’re losing money on shipping. Not because of postal rates—because your envelopes are failing you. That jewelry piece chipped mid-transit? The A4 catalog bent at the corners? The 1-star review blaming you for a shattered phone screen? All avoidable. The problem isn’t your product. It’s the flimsy, overpriced mailers you’re trusting to defend your brand.

Enter the G4 Padded Envelope—the only shipping armor your e-commerce business will ever need. Not a “maybe it’ll work” bubble mailer. This is Sealed Air-engineered protection, FSC-certified sustainability, and Royal Mail-approved sizing, forged into a single solution trusted by eBay PowerSellers shipping 10,000 units monthly. It’s not just an envelope. It’s a reputation saver. A cost killer. A silent salesperson that turns first-time buyers into repeat addicts.

Why Your Current Envelopes Are Costing You More Than Money

Most padded mailers are designed to look protective, not be protective. That bargain-bin bubble wrap? It pops under pressure. That “water-resistant” coating? A light drizzle soaks through. And those generic sizes? They force you to upship to larger parcels, burning cash on unnecessary postage.

The G4 isn’t a compromise. It’s a surgical strike on shipping mediocrity.

Versatility That Fits Every Need
G4 padded envelopes aren’t just for businesses—they’re for anyone who values secure and efficient mailing solutions. Here’s how they cater to different needs:

• For Online Retailers and eBay Sellers: Perfect for shipping A4-sized items like brochures, magazines, and small giftware. The professional appearance of these envelopes leaves a lasting impression on customers while ensuring their orders arrive safely.
  
• For Personal Use: Whether you’re sending a heartfelt gift to a loved one or important documents to an office, these envelopes offer peace of mind with their reliable protection and tamper-proof design.
  
• For Specialized Items: Ideal for semi-fragile items like DVDs, cosmetics, and small components that require extra care during transit.

Key Feature 

• Eco-Friendliness: Recyclable & FSC Certified Non-recyclable Partially recyclable
  
• Protection: Bubble-lined cushioning Minimal protection No internal padding
  
• Ease of Use: Peel-and-seal + tear strip Requires tape Requires tape
  
• Cost Efficiency: Lightweight saves postage Heavier Lightweight

Features That Make a Difference

Peel-and-Seal Closure
Say goodbye to messy tape and complicated sealing methods. The peel-and-seal adhesive strip makes packaging quick and hassle-free while providing a secure seal that stays intact throughout the journey.

Tear Strip for Easy Opening
Your recipients will appreciate the convenience of the built-in tear strip, which allows them to open the envelope effortlessly without damaging its contents.

Writable Surface
The smooth paper exterior is easy to write on with pens or markers, making labeling straightforward. Alternatively, you can use self-adhesive address labels for a polished look.

Water Resistance
While not fully waterproof, these envelopes offer a water-resistant outer layer that provides added protection against light moisture during transit—a feature that’s particularly useful in unpredictable weather conditions.

Size and Specifications

G4 padded envelopes are perfectly sized at 240mm x 330mm (internal dimensions), making them ideal for A4-sized items. Here’s what you need to know:

• External Dimensions: 260mm x 345mm
  
• Weight: Just 21 grams per envelope
  
• Material: Gold kraft paper outer with bubble-lined interior
  
• Classification: Recognized as a small parcel by Royal Mail—saving you money on postage costs!

If G4 isn’t the right size for your needs, don’t worry—these envelopes come in a full range of sizes from A/000 to K/7, ensuring there’s an option for every type of shipment.

Sustainability at Its Core

One of the standout features of G4 padded envelopes is their commitment to sustainability:

• Made with responsibly sourced materials that meet FSC certification standards
  
• Designed for recycling after use
  
• Contribute to reducing environmental impact without sacrificing quality or performance

By choosing G4 padded envelopes, you’re aligning with global efforts toward greener practices while maintaining top-notch shipping standards.

You’re not just buying envelopes. You’re buying peace of mind. The G4 padded envelope is the last mailer you’ll ever test.

Click “Buy Now.” Your future self—swimming in 5-star reviews and extra profit—will high-five you.

Frequently Ask Question’s (FAQ’s)

1. What are the dimensions of G4 padded envelopes?
Answer: G4 padded envelopes have internal dimensions of 240mm x 330mm (9.5″ x 13″) and external dimensions of 200mm x 275mm. This optimizes them for A4 documents and small parcels while qualifying as a Royal Mail “small parcel” to avoid oversize fees.

2. Can G4 padded envelopes fit A4 documents without folding?
Answer: Yes. The 330mm internal height accommodates A4 sheets (297mm tall) vertically with 5mm buffer space, eliminating creases or bends.

3. Are G4 padded envelopes recyclable?
Answer: Absolutely. They’re made with 60% recycled content, FSC-certified paper, and no plastic layers, making them fully recyclable in standard paper bins.

4. How lightweight are G4 bubble mailers for shipping?
Answer: At 18% lighter than standard padded envelopes, they reduce parcel weight to help lower postage costs—critical for eBay sellers and high-volume shippers.

5. Are G4 envelopes waterproof?
Answer: They’re water-resistant, not fully waterproof. The FSC-certified kraft paper repels light moisture, but prolonged exposure to heavy rain may compromise integrity.

6. Can I use G4 padded envelopes for fragile items like jewelry?
Answer: Yes. The Sancell bubble lining absorbs 40% more shock than generic bubble mailers, making them ideal for jewelry, watches, cosmetics, and electronics.

7. What’s the difference between G4 and A4 padded envelopes?
Answer: G4 refers to a size classification (240mm x 330mm), while A4 denotes paper size (210mm x 297mm). G4 envelopes are larger to fit A4 items without folding.

8. How much weight can a G4 padded envelope hold?
Answer: The triple-layer construction supports up to 2.5kg (5.5lbs), though we recommend ≤2kg for optimal tear resistance during transit.

9. Can I print my logo on G4 padded envelopes?
Answer: Yes. The white paper outer layer is printable, allowing custom branding with logos, QR codes, or recycling instructions.

10. Where can I buy G4 padded envelopes in bulk?
Answer: We offer bulk orders (100+ units) with volume discounts, including options like the Sealed Air Mail Lite G/4 and Gold Bubble Lined Envelopes. Free thermal label printers are included for orders over 500 units.