C-A-T vs. SOF-T Tourniquet: Which Should You Carry?
If you've spent any time researching tourniquets, you've run into two names constantly: the C-A-T (Combat Application Tourniquet) and the SOF-T (Special Operations Forces Tactical Tourniquet). Both are legitimate, both are used by military and EMS professionals, and both will do the job. The differences come down to mechanism, feel, and personal preference more than one being objectively superior.
How They Work
Both are windlass tourniquets — a rod that twists to tighten a band around the limb until bleeding stops. The mechanical principle is identical. Where they differ is in the hardware:
C-A-T
The C-A-T uses a plastic windlass clip and a self-adhering band with a friction buckle. It's engineered to be applied one-handed, which matters if the injury is to your own dominant arm. It's also the official tourniquet of the U.S. Army, so it's what most people have trained on if they've had any tourniquet instruction at all — which is a real practical advantage, since familiarity under stress matters more than marginal design differences.
SOF-T
The SOF-T uses a metal windlass and a different buckle system, which some users find offers a slightly more secure, lower-profile lock once tightened. It's popular in special operations circles and has a loyal following among people who've used both and prefer the mechanical feel.
The Honest Comparison
| Factor | C-A-T | SOF-T |
|---|---|---|
| One-handed application | Purpose-built for it | Possible, less optimized |
| Windlass material | Reinforced plastic | Metal |
| Most widely trained on | Yes (U.S. military standard) | Common in SOF/tactical circles |
| CoTCCC recommended | Yes | Yes |
Both are on the Committee on Tactical Combat Casualty Care's list of recommended tourniquets — which is the credential that actually matters. Anything on that list has been through rigorous testing; you're not choosing between a good option and a bad one, you're choosing between two good options.
Our Recommendation
If you're new to tourniquets or don't have a strong preference yet, start with the C-A-T. It's what most first aid and Stop the Bleed courses train on, so if you ever take a class, the muscle memory will transfer directly to the tourniquet you're carrying. If you've already trained on a SOF-T through military or professional experience, there's no reason to switch — carry what you know.
The bigger point: the specific tourniquet matters far less than actually knowing how to apply it under stress. Whichever one you choose, practice with it before you need it.
Shop our full tourniquet selection, or see them included in a complete bleeding control kit.