I've ordered a new running jacket for trail running (training and races) and it's got vents in the back. This is something completely new to me, do jackets like this allow rain to get in at all? Would they pass kit check?
They usually have a significant (> 3") overlap, so unless you are running on your hands, or it's windy enough to blow you off your feet, rain shouldn't get in.
More than four months after setting out on a continuous round of the Grahams, Lorraine McCall has climbed her final summit. She is the first woman to complete a round of the 231 Grahams as a single journey, travelling on foot over the hills...