Does the built-in battery comply with airline boarding regulations?

Yes. The battery is fully compliant with airline safety standards. We possess the MSDS and the Lithium Battery UN38.3 Test Reports, ensuring it is safe for air travel. NOTE:Please detach the vacuum bag before checking in your luggage due to battery.

Why is the zipper in the vacuum bag tight and hard to pull?

Our vacuum-sealed zipper ensures a 100% airtight and leakproof seal, so it requires more force to operate than a standard zipper. Please pull the zipper with a decisive motion. If it doesn't open, please try harder.

What should I do if I receive a defective package or encounter issues during use?

Please find "Your Orders,"select "Problem with order" and "Contact seller", 's professional service team is here to help. NOTE: Hardware accessories include a 2-year product care.

Can I use this backpack for daily commuting or business travel without the vacuum system?

Yes. The vacuum seal bag is detachable and can be used as a standalone compartment. You can freely configure the backpack's storage to suit your travel needs.

Is the vacuum compression easy to use?

Yes. We utilize an innovative one-button design. Simply press the button to activate the vacuum compression—no need to carry any external pumps or extra accessories ever again.

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