Salomon Momentum II Tight Zipped pocket allows runners to safely stash car keys and other essential items Reflective branding on the front and back provide necessary visibility and prevent accidents when it is dark outside Adjustable waist and stretchy material make for a perfect fit Vulnerable areas such as the knees and shins are protected by double layers of actiTherm fabric ActiTherm fabric provides extra protection from the cold while wicking away excess sweat