Originally Posted By: Sherpadog

- I would leave behind the SAS survival guide book.
That would be blasphemous!! For the small weight gain in carrying this book, I have used it more times then I can remember over the years. An added benefit, some pages can be used for fire starter if need be.


Well said! It's a great book and if nothing else it will give you something to read.

There's actually a "Collins Gem" edition of this book which I have in my BOB. It's rather small, and only weighs about 200g



Also, here's a little ultrarunning trick:

Duct tape works better than moleskin. It sticks well, prevents chafing, and doesn't add much bulk which can actually exaggerate hot spots in a shoe. Preventative duct taping before blisters form is best so get it on there the moment anything starts rubbing, but even if you have to drain a blister before applying - it will patch you up and let you keep going.

In a pinch, those empty energy gel packets are also really good for reducing friction and preventing blisters. Just put them between your sock and shoe.
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When you step out that door in the morning you never really know what you're going to encounter.