This is an easy assignment, except for choosing which clothing you want to permanently set aside for emergency situations. You want to make sure the items fit and are appropriate for the season.
Here are some suggested items:
- Wool socks
- Wicking socks
- Underwear for 3 days
- Long-sleeve shirt
- Pair of pants or jeans
- Sweater or hoodie
You'll also want to be able to grab a pair of sneakers or hiking boots.
Tznius women, you have bigger questions to deal with here. I would suggest a knee-length jean skirt with pockets, but that's my preference. It's sturdy, protective, and has pockets for storage. Leggings or thick tights are also suggested, but not for tznius reasons. They can protect your legs from branches or other small scratches like a pair of jeans would. Of course, if you already wear tights or stockings, make sure it's a thick pair. Bulletproof+, you might say.
Headcoverings are also a hard topic, especially those of you who only wear sheitels. I don't wear a sheitel, so I can't imagine having to hike through a disaster zone or the woods with one in an emergency situation. You know your community and your halachic interpretations better than I do, but if there is leniency allowed for a cloth or beret or other lightweight, small haircovering, I recommend relying on that. Of course, I would hope pikuach nefesh would guide you to make whatever decisions are necessary, should the situation arise, chas v'shalom. Of course, there are those who believe haircovering is not a priority in an actual emergency situation and will make do with what they have. Honestly, I don't think any of us will know our reaction until presented with a specific situation. But you may want to raise this question with your rabbi if that is important to you.