In fact, I hesitated briefly because of the cold and wanted only to grab my proven Adidas running jacket. The Gregster jacket is much thinner and lighter, I could not imagine that they could well protect me comparable to wind and weather. To make it short: you can! Light rain sparkled wonderfully on the jacket, nothing penetrated the fabric. The cold did not bother me. Although I was only wearing a T-shirt under the jacket, I was not cold. There were slight wind which was however very cold. I felt through my Asics running shorts very clear through the jacket practically impossible. It was formed under the jacket barely sweat, or this was passed well to the outside. In the Adidas jacket I sweat more.
These are now only a first impression, but who surprised me ever positive. I will add here other experiences where appropriate.
The jacket fits perfectly. The Adidas jacket is also XL but turns out much larger. In particular, the sleeves are too long. When Gregster everything fits. The build quality is pretty good, considering the very reasonable price. In some places, the seams are not completely clean, especially on the thumb loop has not worked very neat, I fear, the tears soon. Very practical is the "zipper garage" on the collar. It prevents the zipper slide scrubs with closed collar at the neck.
The fabric rustles slightly when moving, but not so that it would bother me. According to the care instructions jacket must be washed at 40 ° in the machine, and even when using the program already in the dryer.
Overall, you get here for little money a pretty good running jacket. Your strengths snd the climate regulation and the windshield. I consider price sensitive, and so the 4 stars should be seen as "very good for the price." Of course there are better jackets in higher price ranges, but the Gregster is recommended in any case.