Test 19: thinnest material I've tested. It caught fire, then stopped on its own. Three layers, same thing. Faster even. But the flame still went through. Won't spread. Won't protect. Nineteen down. #edc #materials #firetest #materialtest #indestructiblejacket #buildinpublic

Test 20: most confident I've felt before a test. Heavy canvas. Feels like armor. One layer — plop. Through like paper. Three layers, same sound, same result. Rigidity is what killed it. Twenty down. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic #canvastest

Test 18: A blade goes through it. Your hands can't pull it apart. Parachute nylon. Three layers. Zero tear resistance. Eighteen materials down, still searching. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic #nylontest #materialscience #gaussheavyindustries

Test 1: Kevlar that was never designed to stop a knife. I tested it anyway — five combinations, four attempts, full force. It failed. The results were still surprising. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic #kevlartest #materialscience #gaussheavyindustries

Test 24: natural tanned leather. Centuries of trust. Knights. Cowboys. Bikers. One layer — through instantly. Clean. Like cutting wet paper. I only had one piece. I wasn't going to waste it on more layers. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic #leathertest

Kevlar fights back against everything that tries to penetrate it. Including sewing machines. I had to kick the wheel by hand. Every single stitch. One at a time. Then I flipped it over and felt the seam — and couldn't believe this was going to stop a knife. #buildinpublic #indestructiblejacket

Test 6: cotton. The most worn fabric in human history. One layer — through before I finished the motion. Two layers — same result. The cut was so clean it looked like scissors. Eight billion people trust this every day. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic

No factory. No team. No budget. Rural Brazil. This is where the world's first indestructible luxury jacket starts. Most people build things like this in labs. I'm not most people. #buildinpublic #indestructiblejacket #gaussheavyindustries #gaussmaterialtrials #markI #maker #fromtheground

Test 2: Kevlar made for welding, not knives. I tested it anyway. Full force — through. Tried again — worse. Then I pulled the layers apart and saw what the blade did to the fibers. Almost used this in a jacket. #edc #materials #knifetest #materialtest #indestructiblejacket #buildinpublic #kevlartest

Test 27: vegetable-tanned leather vs flame. Charred. Darkened. Smoked. No flame. Nothing spread. Held the torch there. Other side untouched. Stopped the knife. Stopped the fire. Almost broke my needle. Still can't use it. #edc #materials #firetest #materialtest #indestructiblejacket

Test 25: natural tanned leather vs flame. It wrinkled. It charred. It curled at the edges. Never caught fire. Held the flame there. Nothing. Other side untouched. Now I understand why bikers wear leather. Not for blades. For the road. #edc #materials #firetest #materialtest #indestructiblejacket

Test 8: nylon spandex. Pulls tight, snaps back every time. But a knife doesn't push — it cuts. One layer, blade didn't slow down. Two layers, same thing. The cut was clean. No drag. Like the fabric was never there. Eight down. #edc #materials #knifetest #materialtest #indestructiblejacket