US$ 23.78
backpack with 17 inch laptop compartment HANXIUCAO for Men, Large Travel Backpack Lockable Anti-Theft & USB Port, Water Resistant College Work Computer Bag (Black : Electronics shock shell is waterproof Nike Black Roll Top Color:Onyx Bulk 15" Backpacks
Nike Black Roll Top Backpack Bag Swoosh | eBay
I think if Randall had taken the Z-lite instead of an inflatable pad, that this pack might have worked very well for him
Bulk 15" Backpacks
Color:Onyx
This is an 85 litre capacity rucksack so has a good amount of space
shock shell is waterproof
US$ 23.78
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