What Our Gearhead(R) Experts Are Saying:"I grabbed the GOREWEAR Concurve Cloud Windbreaker Vest for a breezy spring morning run and the Gore Select wind-blocking fabric completely shut out the chill while the two-way zip let me manage heat precisely once the effort ramped up. At 58 grams it is genuinely one of the lightest layers I have ever run in, and the anti-wet-cling interior means it stays comfortable against skin even when sweat builds up."Wind resistance in a vest format is one of running's more elegant solutions, and the GOREWEAR Concurve Cloud Windbreaker Vest executes that concept about as well as anything in the category. At just 58 grams it is nearly imperceptible on the body, built from a nylon and elastane blend with Gore Select material that blocks wind and prevents wind chill without sacrificing the breathability needed to sustain real running effort across three seasons of use. The anti-wet-cling interior is where GOREWEAR put particular thought into the design. A 3D inner structure reduces contact points between fabric and skin so sweat has fewer surfaces to cling to, keeping the vest comfortable even as intensity climbs. A DWR finish sheds light rain to handle the kind of unpredictable conditions that a vest is perfectly suited for, and the two-way front zip hands ventilation control directly to the runner so airflow can be dialed in precisely at any pace. Kinetic Design optimizes the cut specifically for running movement so nothing pulls or shifts through arm swing and stride. Zippered hand pockets and reflective details round out a vest built to be reached for constantly and noticed only when the wind picks up.