[EXPEDITION DEBRIEF] [COMPOUND GRID-DOWN DRILL // 72-HOUR AUTONOMY TEST] Cut the breaker Friday at 1800. No grid power, no backup generator—just stored supplies, hand tools, and whatever you cached before the clock started. This wasn't a larp. This was a stress test. By hour six, you learn which gear is mission-critical and which pieces were NPC impulse buys you never should have pulled off the pallet. The TW Kempton Exmoor quarter-zip sweater stayed on my back for the entire 72 hours. Didn't layer over it. Didn't swap it out. Didn't even think about it—which is exactly the point. Wool doesn't care if you're splitting firewood at 0600 or running a patrol line in a cold drizzle at midnight. It regulates. It breathes. It traps your body heat without turning into a sweat-soaked synthetic shell the second you start moving under load. No battery. No circuitry. No failure mode. The sweater's quarter-zip design let me dump heat fast when I was hauling water or stacking cut rounds, then close it back down the second I stopped moving. That kind of analog thermostat beats any tech layer I've field-tested. Cotton kills. Synthetics broadcast your scent and moisture signature like a beacon. Wool is low-profile, high-retention, and when the grid goes dark for real, you won't find a replacement at the NPC depot down the road. I didn't take it off because I didn't need to. That's the only metric that matters. Drill debrief: water filtration system performed clean, hand-crank lighting held steady, freeze-dried cache stayed intact. One radio failed (fiat-grade Chinesium internals, already replaced). The Kempton Exmoor quarter-zip out-performed every synthetic mid-layer I've cycled through in the past eighteen months. No glitches. No failure points. Just function. This isn't a product I intercepted by accident. It's a core-cache staple now. If your loadout doesn't include at least one wool mid-layer that can pull 72 hours without a wash or a battery, you're not running a resilient system—you're running a dependency chain. Link in bio. Limited intercept. When this pallet clears, restock timeline is unknown.