About

Guard Theory makes no-gi grappling apparel and publishes a technical study of the guard. Those are one project, not two.

The apparel exists because training kit is worn for hours a week and is mostly sold on adjectives. The writing exists because jiu-jitsu is taught overwhelmingly through demonstration, and demonstration is bad at explaining why something works — you can watch a guard retained a hundred times and still not be able to say what the retaining consisted of.

So the same standard applies to both. A garment is described by its construction rather than its marketing. A technique is described by its mechanics rather than its lineage. When we do not know something, the page says we do not know it.