Custom Expandable Kraft Mailers
Our custom expandable kraft mailers are printed with your brand logo and made from FSC-certified recycled paper. They feature expandable side and bottom gussets that adjust to your product dimensions, providing a flexible fit and a clean, professional presentation.
Product Specifications
| Product Name | Custom Expandable Kraft Mailers |
|---|---|
| Sustainability | Standard (Natural Kraft): 100% Biodegradable & Recyclable Upgrade (Waterproof Coated): Recyclable |
| Material | Brown Kraft Paper, White Kraft Paper (virgin or 100% post-consumer recycled) |
| Standard Sizes | 6 × 10 inch, 7.25 × 12 inch, 8.75 × 12 inch 9.5 × 14.5 inch, 12.5 × 19 inch, 14.25 × 20 inch Custom sizes available upon request |
| Thickness | 120gsm – 350gsm (6pt – 21pt), (Multiple Options Available) |
| Closure | Ultra-Strong Self Seal Adhesive (Tamper-Evident) |
| Mailer Style | Expandable gusset (side gusset standard; bottom gusset available on request) |
| Surface Treatment | Standard: Natural Uncoated (Breathable) Option: Waterproof Coated |
| Printing Options | Custom Logo Printing, Full-Color CMYK Edge-to-Edge Printing |
| Sample Policy | Free stock samples available; Customized samples supported |
| Lead Time | Samples & Small Batches: Approx 1 week Bulk Orders: Approx. 2–3 weeks |
FAQ about Custom Expandable Kraft Mailers
1. What is an expandable kraft mailer and how is it different from a flat mailer?
An expandable kraft mailer features a gusset a folded section at the bottom or sides that opens out when filled, giving extra space for bulkier items. Unlike flat kraft mailers that work best for documents or thin apparel, expandable mailers accommodate items up to 2–5 inches thick, like folded sweaters, boxed gifts, or multiple stacked items, without straining the seal or distorting the bag.
2. What is the difference between side gusset and bottom gusset ?
Side gusset: Expands on both sides, allowing for greater capacity and easy flat storage, but the bag cannot stand upright on its own.
Bottom gusset: Expands at the base, allowing the bag to stand upright and providing better stability and load-bearing strength.
Expandable paper bags can also be designed with both side and bottom gussets for maximum flexibility and capacity.
3. Are kraft expandable mailer bags with logos recyclable and eco-friendly?
Yes. Our kraft mailers are made from FSC-certified paper either virgin kraft or 100% post-consumer recycled content and printed with water-based, non-toxic inks, They are fully curbside recyclable.
4. What is the minimum order quantity (MOQ) for wholesale expandable paper mailers?
Custom Logo Printing: MOQ 100 units
Custom Size & Full-Color Printing: MOQ 500 units
Laminated / Premium Finish: MOQ 1,000 units
5. What sizes and gusset depths can be customized for expandable kraft mailers?
We provide fully custom sizing options. Simply share your typical product dimensions, and we’ll recommend the most suitable mailer size and gusset combination to ensure a snug, professional fit while minimizing unnecessary material waste.
6. What things can I ship in a Gusseted Paper Shipping Mailer?
Our Gusseted Paper Shipping Mailer is designed with expandable sides to provide extra room for bulkier items. You can comfortably ship:
Apparel & Textiles: Multiple clothing items or sweaters that need extra volume.
Books & Stationery: Perfect for thicker books or sets of documents that standard flat mailers cannot fit.
Boxed Goods: Items in their original boxes that benefit from the expandable gusset design.
Note: While these mailers are durable and tear-resistant, for highly fragile items, we recommend using our Padded Mailers for added protection.
7. Are Kraft Mailers waterproof?
Recycled kraft mailers are made from paper and are not naturally water-resistant. However, we offer coated kraft paper options that provide additional protection against rain and moisture, making them ideal for use in humid climates.
If you require fully waterproof packaging for shipping, please explore our plastic mailer bag options.
