One Ultralight Rain Jacket

The water column of 25,000 mm in combination with a very high breathability of 50,000 gr/m2/24 ensures that sweat can escape when running around in the rain for hours on end, but the jacket still doesn't let any moisture through from the outside, so it always stays nice and dry inside. At 150 grams (size 128/134), the jacket weighs a little more than a bar of chocolate and can be easily stowed away in its own inside pocket.