Ecopak Expansion Sack
off white / F
$102.00 USD
Skip to product information
The ECOPAK fabric used in this product is made from 100% recycled polyester, featuring a C0 water-repellent finish, waterproof performance with a water pressure resistance of 20,000mm, and high durability, making it an environmentally friendly material. This is an external expansion sack that can be fixed to the top of 45L, 40L, 30L backpacks and the bottom of the 20L daypack.
Ecopak Expansion Sack
5743975006
$102.00 USD
Shipping calculated at checkout.
Size Chart
| Size | Width | Height | Depth |
|---|---|---|---|
| F | 33cm | 12cm | 12cm |
All measurements are in (cm).
Because outer measurements are taken by hand, slight variations (about 1–2 cm) may occur depending on the product.
Measurement methods may vary depending on the material, product shape, and whether accessories are included.
To confirm the best fit, we recommend measuring a similar item you own and comparing it with the garment measurements.
Shipping Policies
Shipping destinations
We ship directly from Japan to the United States, Canada, Australia, and the United Kingdom via EMS.
Shipping charges
Free shipping on orders of US$500 or more, or the equivalent in your selected currency. For orders below this amount, shipping is calculated by package weight:
- United States: US$40 up to 4.4 lb (approximately 2 kg), and US$60 above 4.4 lb.
- Canada, Australia, and the United Kingdom: US$35 up to 4.4 lb (approximately 2 kg), and US$50 above 4.4 lb.
These rates are set in USD and converted to your checkout currency where applicable. The final shipping charge is shown at checkout. If your order ships in multiple packages, their shipping charges may be combined.
Processing and delivery
Processing takes 5-10 business days before dispatch. Estimated shipping time to the United States is 7-14 business days after dispatch. Transit times to Canada, Australia, and the United Kingdom vary by destination; contact us for an estimate before ordering.
Delivery may be delayed by customs inspections, natural disasters, or postal strikes.
Import duties and taxes
Greybird covers all applicable import duties and taxes for orders shipped to every destination we support. If customs or your carrier requests payment, please contact our support team for assistance. See our import duties and taxes policy for details.
Order tracking
Your dispatch confirmation email includes your tracking number and tracking link. Use that link to follow your parcel from Japan through delivery in your country.
For shipping questions or help with tracking, contact hello@greybird.store.
Refund Policies
Returns & Exchanges
All items are purchased brand new from the original source and shipped as is.
Returns, refunds, and exchanges are not accepted for overseas orders unless the customer receives an incorrect item due to our fulfillment error.
To request review, please contact us within 3 days of delivery with your order number, clear photos, and a description of the issue. Returns will not be accepted without prior email approval.
We Cannot Accept Returns or Exchanges If:
- The item was received as ordered
- More than 3 days have passed since delivery
- The item has been worn, used, or washed
- The item has odors, stains, or damage after delivery
- Original accessories, packaging, or boxes are missing
- The item has been altered or repaired
- The item was purchased as a sale or discounted product
Taxes are covered by us
We cover all applicable import duties and taxes for orders shipped to the United States, Canada, Australia, and the United Kingdom.
If you receive a payment request from customs or your carrier, please contact our support team for assistance.