Our Pack-It rainwear is 2000 waterproof and 2000 breathable.
The only area where water may penetrate is the Zip as it is features a reversed zip rather than a waterproof zip which is typical of jackets at this price point.
Because of the breathability rating sweat can also get trapped inside during extremely rigorous activities.
Mine is not fully waterproof, I find beads of water on the inside!! Did I get a faulty one/ should it be treated. Certainly light, comfortable and holds out large percentage of the water, but it doesn't keep me suitably dry! Maybe it's tooo breathable!