ULTRALITE IS BACK. Never be caught in the rain again, our legendary Sentinel Jacket is now available in our ultra-lightweight AEGIS® Strata fabric. Our ultimate in lightweight jackets, so light you'll be able to stow it away in it's own hood. Chuck it in your pack, or the car boot, and put it to the test when you next get caught out in a downpour. 20k Waterproof Rating & 20k Breathability Rating(20,000g/m2/24hrs).