When your buddies call to say they're headed your way, throw on the Men's Rocklin ½ Zip Jacket. It offers 100-weight fleece for lightweight warmth, and its pullover style is easy to layer when the weather's too perfect to stay inside. Flatlock seams make this fleece jacket even more comfortable and reduce irritation and chafing. Use the ½ zip at the front to adjust to fluctuating temps.