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How to avoid a sweaty back and back sweat while wearing a backpack with airflow & ventilation - YouTube
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How can I keep my backpack from resting directly against my back? - The Great Outdoors Stack Exchange
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How can I keep my backpack from resting directly against my back? - The Great Outdoors Stack Exchange
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Amazon.com | VentaPak Small Ventilation Backpack Spacer - Small Version Lightweight Rucksack Accessory Frame to Improve Airflow, Sweat Guard & Back Strain | Increase Comfort for Hiking, Biking | Casual Daypacks
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