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  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
  • Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl
Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl

Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl

  • 1000 - 1999 Pieces
    $0.35
  • >= 2000 Pieces
    $0.28

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Sturdy Mailing Solution: Designed with rigid kraft paper and expandable cardboard structure to protect fragile or delicate items like shoes, clothing, and craft goods during transit.
  • Recyclable & Eco-Friendly: Made from recycled materials and recyclable kraft paper, aligning with sustainability goals while maintaining durability.
  • Convenient Closure: Peel-seal adhesive ensures secure, tamper-evident sealing for reliable protection during shipping.

Key features

  • 1. Material Technology

    • With recycled kraft paper and rigid cardboard construction, these mailers reduce environmental impact while maintaining durability. The thick, sturdy material outperforms standard plastic mailers in tear resistance and weight capacity*, making them ideal for heavy or bulky items.

  • 2. Interactive Design

    • With a peel-seal closure and expandable design, you can easily seal and reseal the mailers without tools, ensuring secure packaging for items like shoes, garments, or fragile goods. This convenience surpasses traditional tape-based envelopes*.

  • 3. Performance Parameters

    • With reinforced rigid structure and strong adhesive sealing, these mailers can withstand rough handling and support up to 5 lbs (2.3 kg) of weight—30% more than standard paper mailers*. Their expandable design accommodates varying item sizes, optimizing space efficiency.

  • 4. Scenario Solutions

    • Designed for both commercial express shipping and personal use, these mailers are ideal for sending delicate items like shoes, clothing, or crafts. Their stay-flat feature ensures items arrive in pristine condition, unlike flimsy alternatives that may crease or bend*.

  • 5. Certification Standards

    • With recyclable and recycled materials, these mailers meet eco-friendly packaging standards, aligning with sustainability goals. Their rigid kraft paper construction also complies with industrial packaging regulations for express delivery services.

Product details

Custom Printed Craft Stay Flat Mailers Rigid Kraft Mailing Postal Express Expandable Cardboard Envelope Button Envelopes for Cl

Custom Printed Craft Stay Flat Mailers combine eco-conscious design with rugged durability. Made from recycled kraft paper and cardboard, these rigid envelopes ensure secure, flat shipping for items like shoes, garments, and delicate crafts. Their peel-seal closure and sturdy construction make them ideal for express delivery, while customization options allow branding for businesses.

Technical specifications

FeatureSpecificationBenefit
MaterialRecycled kraft paper + cardboardEco-friendly, 100% recyclable
Closure TypePeel-seal adhesiveEasy resealable; tamper-evident
Thickness250gsm kraft paperWithstands rough handling, heavy payloads
Adhesive StrengthIndustrial-grade adhesiveSecure seal for items up to 5kg
RecyclabilityMeets ISO 14021 environmental standardsReduces waste, aligns with sustainability goals
Application ScenariosClothing, shoes, crafts, express deliveryVersatile for retail, e-commerce, and bulk mailing

Customization guide

Adjustable parameters include:

  • Material Thickness: Upgrade to 300gsm for ultra-heavy payloads.
  • Adhesive Type: Opt for heat-activated seals for high-temperature regions.
  • Print Customization: Add logos, QR codes, or branding to align with corporate identity.

Get inspired

Elevate your packaging with these eco-friendly mailers. Their rustic, sturdy design adds a premium touch to product deliveries while ensuring items arrive intact. Perfect for businesses prioritizing sustainability without compromising on durability.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material Thickness250gsm280gsm (+12%)300gsm (+20%)
Adhesive StrengthStandard (5kg max)Heavy-duty (8kg)Industrial (10kg)*
Recyclability80% post-consumer90% post-consumer100% post-consumer
CustomizationBasic printingFull-color graphicsPremium embossing

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s 300gsm material is 20% thicker than industry standards, enabling safe shipping of bulky items like winter coats.
    • Advanced adhesive technology in the Pro/Advanced versions offers 40% stronger adhesion compared to traditional mailers.
    • All models meet ISO 14021, ensuring recyclability without compromising structural integrity.

  2. Optimal Version Selection:

    • Base Model: Ideal for small businesses shipping lightweight items (e.g., socks, stationery) with standard branding needs.
    • Advanced Model: Best for e-commerce retailers requiring durability for mid-weight goods (e.g., shoes, accessories) and full-color customization.
    • Pro Model: Tailored for bulk shippers of heavy items (e.g., fur coats, art supplies) needing maximum strength and 100% recyclable materials.

Example Use Case: With the Pro Model’s 10kg adhesive capacity, you can securely ship heavy winter garments. Pair it with its 300gsm material to prevent creasing, ensuring customers receive items in pristine condition.

Frequently asked questions

  • Which mailer suits heavy items like books or glassware?

  • Recycled Kraft vs Regular Paper: Which is better for eco-friendly packaging?

  • Can I add custom logos to the envelopes for branding?

  • Are these envelopes recyclable and eco-certified?

  • How do peel-seal closures ensure secure packaging?

  • Can these mailers handle rough postal handling?

  • How do the expandable features help with varying package sizes?

  • Are these suitable for mailing fragile items like glassware?

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