My only suggestion is to keep it light. A week of food, unless it’s dehydrated, is very heavy, and if it’s dehydrated you need to carry the water for you to drink, plus the water for rehydrating your food.

You can go a long time without food, even while doing moderate exercise like walking in rough terrain. Water, you can only go 2 or 3 days without it and you’re done.

I refer to my kit as a “shitty night” Kit. Bug out bag implies long term survival, whereas my emergency kit is more for making one or 2 shitty nights in the woods survivable. The whole thing weighs like 7 pounds with the water, and has a metal camp cup for boiling water if I really need to. I can comfortably carry it all day, in case I decide I need to leave the car.

The actual contents, if you want an idea, is something like this, although I do change it from time to time.

Small “pocket” first aid kit, as you find in camping stores, with 2 pads of gauze and a tube of neosporin crammed in.

12 oz camping pot/cup for making a warm drink. I put some tea packets with this, because a cup of tea during and after a cold night just sounds good.

A decent gerber multitool, because a knife and pliers are always helpful.

An oversized poncho, which doubles as a rain coat, and can be repurposed into water proof shelter with the aid of a handy tree.

About 50 feet of paracord, for tying down said raincoat.

Space blanket for those really cold nights.

A fleece sweater, spare socks, and long thermal underwear. These are by far the bulkiest, and I’m tempted to get rid of the thermal underwear as I’ve never needed it. But I do pull out the rolled up sweater all the time when it’s colder than I thought. It’s very thin but warm, and rolls up very small. I’ve needed the socks too, after discovering a hole in my shoe after walking through a puddle.

A small flashlight with spare battery.

Fixed blade Mora knife.

A roll of 1” wide gorilla tape I found at the hardware store. It’s only about the size of a roll of electrical tape, but is handy for patching things. I’ve used this more in my car for taping things shut, should probably replace it now that I think about it.

A few lighters and a couple camp fire starter sticks in a plastic bag.

3 or 4 cliff bars, as those are my favorite granola bars.

A couple water bottles in the pockets on this side of the bag.

And finally, a good compass. Not one of those button deals that never reads properly and only vaguely tells you where north is if it decides to work. A real compass with the full 360 degrees marked on it and a sighting window for taking bearings. If you’re lost in the woods and have a map of the area, a real compass will let you figure out where you are and what direction to go to find the nearest thing to safety.

And that’s about it.

My grandfather once told me a story of getting lost with a friend of his while elk hunting in the Rockies. Between them they had their rifles, hunting clothes, and a knife set, but basically nothing else. His friend had a “survival kit” that he always talked about. The kit had everything he thought he needed for about a week. Where was the kit? Back at their camp because it weighed like 20 pounds and he didn’t want to carry it. Luckily, his friend was a smoker, so they were able to get a fire going and wait out the night until the other 2 in the group called for help. But it was pretty rough from what he said. I took that lesson to heart. The stuff you have on you and are willing to carry is way more valuable than the duffle bag full of stuff you left in your car 10 miles down the trail.