Ventilated jacket with a wing

A ventilated jacket includes a body portion having a front side and a rear side, a sleeve portion extending from the body portion, and a ventilation system including a plurality of vent openings configured to allow airflow into and out of the jacket. The ventilation system includes an underarm vent having a first end and a second end, the underarm vent extends across a seam between the body portion and the sleeve portion. The jacket further includes a wing that follows a path established by a rear side of the underarm vent. The wing includes a first end adjacent the first end of the underarm vent and a second end adjacent the second end of the underarm vent. The wing extending outward from the underarm vent to channel oncoming air into the underarm vent when the sleeve portion is held in an extended orientation away from the body portion.