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How to avoid a sweaty back and back sweat while wearing a backpack with airflow & ventilation - YouTube
![Man with backpack hiking wipe the sweat and hold the water bottle on the mountain forest. Backpack summer travel concept Stock Photo - Alamy Man with backpack hiking wipe the sweat and hold the water bottle on the mountain forest. Backpack summer travel concept Stock Photo - Alamy](https://c8.alamy.com/comp/2GCJWGA/man-with-backpack-hiking-wipe-the-sweat-and-hold-the-water-bottle-on-the-mountain-forest-backpack-summer-travel-concept-2GCJWGA.jpg)
Man with backpack hiking wipe the sweat and hold the water bottle on the mountain forest. Backpack summer travel concept Stock Photo - Alamy
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VentaPak Lightweight Ventilation Backpack Spacer - Rucksack Accessory Frame to Improve Airflow, Reducing Sweat & Back Strain | Increase Comfort for Hiking, Biking, Backpacks, Adjustable & Light <12oz : Amazon.ca: Tools &
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