Have the jacket for about 3 months, you can without problems - topsy go out 5 degrees with a T shirt. The bombs keep warm, and rain keeps them very well was unfortunately not as breathable as described. For prolonged wear from 30 minutes a definitely warm. The heat accumulates downright under the jacket. One very big disadvantage in my opinion. But it holds up very hot and is waterproof and windproof. Conclusion but great jacket that is well without the necessary breathability is only partially acceptable, nothing for long trips, etc.
