Not quite nylon, but a "pouch", so here it is...

The Gen 7 C-A-T® RIGID TQ Case® was designed to provide personnel with the capability to carry the life-saving C-A-T® Tourniquet on their person by easily mounting it to their duty/patrol/pistol belt, where it is needed most. It can be mounted either vertically or horizontally and can also be attached to a Safariland Drop Leg Shroud using the existing holes (the case mounts with 2 screws in the middle of the case). The Injection Molded Nylon Case provides strength and durability as it holds the Gen 7 C-A-T® Tourniquet tightly in place with no straps or covers. The tourniquet can be quickly and easily removed by grabbing and pulling the top part of the C-A-T® Tourniquet. The case also includes a hook and loop cross to identify it as medical equipment. Injection molded plastic will stand up to rugged use.

Tourniquet sold separately:

CAT Gen 7 Tourniquet