The build
Made to be ruined and refuse to be
GRAV started in a single academy with one complaint: gis that die in six months. Four patterns and two years later, this is what we train in.
-
Pattern
Drafted on real athletes across four belt ranks, then cut down until nothing binds in a grip fight.
-
Mill
One mill, one weave spec. Every roll is checked for GSM and shrinkage before it is cut.
-
Proof
Two competitors train a sample for eight weeks. If it fails, the pattern goes back to the table.
What we measure, and what we will not claim
A gi shop can tell you anything about how a fabric performs, because almost nobody checks. So the numbers on our product pages come off a scale and a tape measure, and the ones we have not taken yet are left visibly blank rather than filled with a plausible guess.
- Fabric weight — a 10 × 10 cm sample of jacket cloth, weighed, ×100.
- Dry time — soaked to saturation, spun at 1200 rpm, hung shaded outdoors. Ambient temperature and humidity recorded, because four hours in January is not four hours in August.
- Shrinkage — sleeve, jacket length and inseam measured, five washes at 30 °C, line dried, measured again.
- Breathability — judged 1–5 by a named tester over at least three rounds of live rolling, conditions stated.
Nobody else in this market publishes any of this. It is not difficult — it just requires being willing to print the number when it is unflattering.