Our Atomic Cliffline Stormfold Jacket M is a two-piece jacket that offers a radical new way to layer up. It’s the first jacket to feature a weatherproof PrimaLoft midlayer as the main jacket with a separate lightweight Pertex storm shell tucked away in a back pocket. Thanks to this new design, Cliffline Stormfold Jacket helps you adapt to any conditions – without changing your jacket or carrying loads of just-in-case layers up the hill. It gives you all the protection you need, with none of the weight. And all the time keeping you free, flexible and super comfortable.