With all the climbing Vin has to do on an average day, she tries to travel light. Carry only the essentials. You know, the kind of stuff that any self-respecting lady keeps in her satchel:
A bottle of water.
Candies her elderly friend gave her that she'll never eat.
Pocket radio.
Vine rope.
Stolen pistol.
Bullets. Lots of bullets.
Wadded papers with vital information that she'll inevitably lose.
Only the best equipment for a tried and true professional.