This packable outer layer features stretchy softshell lite fabric for highly breathable weather protection the front panels and sleeves are windproof and water resistant while a small mesh panel in the back aides ventilation the offset hem and sleeves create a form fitting silhouette on the bikenew softshell lite fabric on the front and sleeves provides breathable wind and water protection with stretchopen mesh panel on back for breathabilityfull length zipper for venting with top storm flap f