I carry a more substantial kit than most, but I'm EMR rated, so I'm a nerd on a stick when it comes to TCCC gear.
TFAK/IFAK (Condor Tear Away Medic Pouch [full size 5"W x 9"L x 6"D]):
1 Swat-T tourniquet (not good for self-application)
1 Sof-T Wide tourniquet (external mount)
2 Israeli 6" compression bandages
2 North American Rescue 4" X 4 yard compressed gauze.
2 28Fr Nasopharyngeal Airways w/lube
1 North American Rescue S.P.E.A.R. decompression needle
2 Hyfin vented chest seals
1 1" roll of Gorilla tape
6 feet of 2" Gorilla tape
4 5x9 gauze pads
1 3" ACE bandage
1 3" roll of compressed Curlex
1 60 ml sterile saline wash in bullet tube.
4 pr. Nitrile gloves in light blue.
1 pr. Nitrile gloves in black.
1 pr. Trauma Shears
1 SAM splint
2 Mylar Emergency Blankets
Total weight: 2 lbs.
Boo Boo Kit (Condor Tear Away Individual First Aid Kit):
Band Aids: 4 each in all the sizes.
Triple Antibiotic ointment
1 Triangle Bandage
8 4" Gauze Pads
8 2" Gauze Pads
Benadryl
Imodium
Tylenol
Dermabond
Total weight: Less than 1 lb.
Truck Kit (Bag varies on anticipated conditions)
Double everything above plus:
1 Pocket BVM (Bag Valve Mask)
1 Suture Kit + associated tools
1 Full set of Nasopharyngeal Airways w/lube
2 Staple Suture guns + staple remover tool
1 MDF Acoustica Stethoscope
1 BP Cuff
1 GPS Emergency Beacon
It sounds like a lot, but it's less than 3 lbs on my person for the TFAK and the Boo Boo kit. Less than 12 lbs for the truck kit. I've been doing this for 30 years, so I've seen some weird injuries. We had a team member get a concussion from a hedgeapple (osage orange) falling out of a tree he was under, then another guy twisted an ankle stepping on another hedgeapple trying to get to the first guy. A couple of years later, we had a member take a tumble down a hill and impaled himself on a tree branch that had been broken off about 8 inches from the trunk. That's when I decided to get the proper training and gear to take care of most things long enough to get them advanced care.
You might notice that I didn't list a hemostatic agent like Celox or Quick Clot. I just don't have any at the moment. I'm a fan of Celox Combat Gauze Rapid. Stay away from powders. If a wound requires hemostatics, powder will flow right out of the wound and do nothing. Wound packing with a hemostatic gauze is preferable and applying direct pressure, but hemostatics will leave some nasty scars.
Get some basic training and be safe out there! :-)