This On Running Hoodie is made with zero bulk but lots of bonuses.
Swiss Engineering lets you adapt the Hoodie if the temperature rises. The zippered front pocket goes unnoticed until you need it. Thumb holes keep your sleeves where you need them. Rear vents can be opened if things heat up – or to accelerate your cool-down. All the comfort of your classic hoodie, all the tech you've come to expect from On.