I keep a First Aid Kit in a ziplock bag in a back pack pouch in my pickup:
3 feet of rubber tubing for a tourniquet and an 8 inch long 1/2" dowel to hold it.
CELOX bandages, granules, and syringe.
A chest seal
Betadine First Aid Solution
4x4 compressed gauze pads
Rolls of gauze
Cloth medical...