This product I recently after buying from Amazon (kudos to Amazon for the good price and reliable service!) And the first wash at about 11 ° C and a headwind of approximately 13 km / h test. Under the jacket I was wearing a long-sleeved jersey the Contest Thermo. The jacket offers a very good protection against the cold wind. Any passage in the RVs on the sleeve could not be determined. Uphill I hardly sweated at the trunk. The cut of the jacket is compared to a countdown GT or an Alp-X 2.0 a bit tighter on the body failed. The sleeves can be removed by means of zips, so that they can then be used as a vest (hence probably also the narrower section). For transition times like spring and autumn, this feature is a great thing. When it rains, I would not want to use the jacket because it was not as a raincoat, but as Windstopper designed. That's why she has attending no hood. For the intended use, however, I would recommend this product without restrictions. MFG.