This is our core wind resistant running jacket. Whether you are new to running or have been obsessed with running for years you will appreciate the benefits of a wind resistant jacket. Perfect for most days, when it’s not raining, a wind resistant jacket will be the most comfortable option for some protection from wind chills and a light drizzle. This is because the breathability is not impeded by a waterproof laminate found on waterproof jackets which need to be more robust to keep the rain out. Through experience and research we know that the ideal wind resistant jacket has an air permeability of around 5. Air permeability measures how wind resistant any fabric is with a score of 0 being totally windproof, whilst a result of around 5 means that the trade-off between wind resistance and breathability is at the ideal level for runners. The AW19 Stride Windspeed Jacket has charcoal reflectivity front and back, and new graphics to sleeve hem.