Interesting timing...
I recently put some of these together, meant for pocket or small pouch carry.
Larry
Minimalist Survival Kit
Compact, covers basic needs.
Pocket size for “always carry”
Container:	Pouch (1)
Bead chain+:	To carry + items
Light:       +Flashlight	MKII-Photon-Freedom-Micro (2)
Glow stick--Universal +Glow Marker (3)
Wayfinding:	Thumb-Tac Compass (3)
Trail marking:	slim-pak-duct-tape-orange (4)
Signaling:     +Whistle:	Woodcovo Whistle (5)
+Mirror: Smallest for this kit (4)
Water:        Container	Whirl-Pak Bag (5)
Filtering	Conical coffee filter (6)
*Potable Aqua	4 tablets/2 liters (6)
Fire:               Matches	Coghlan waterproof (5)
Striker strip:	Coghlan striker strip (5)
+Ferro rod:	Mini-Match™ Firestarter (4)
Tinder:	Procamptek Fire Plugs (5)
Candle:	Trick birthday (6)
Shelter/warmth:	Dynarex Mylar blanket (7)
First Aid:	Band aids x2 (6)
Pain pills (6)	Moleskin 2”x2” (6)
Nutrition: 	*Electrolytes: 1 or 2 (6)
*Bouillon cubes x2	1 per 16 oz. hot water (6)
Aluminum foil	To make a cup (6)
Utility:                Knife	Victorinox Mini-Champ (3)
Duct tape	See Wayfinding above
String, 25 feet braided fish line (6)
Safety pins (6)	Needles & thread (6)
Fresnel lens (8)	Writing paper (6)		
Sources: (1) Personal choice. (2) Knifeworks.com. 
(3) countycomm.com. (4) SurvivalResources.com. (5) Amazon. (6) Off the shelf. (7) Medical Monks. (8) 
www.bestglide.com.Note 1. Before an outing: Check all gear, review how to use it.  *Refresh batteries and consumables.
Note 2. Contents fit in half a quart Ziplock bag, which fits in a 5x7-inch Lewis N Clark Hidden Travel Wallet.