VENTRIX technology is engineered from a quilt synthetic that has laser-cut ventilation holes body-mapped into high-perspiration areas. When the user is static, these holes remain closed, retaining heat. However, when the user starts to move, they dynamically open, allowing breathability and regulating core body heat.
Jury-Statement about SUMMIT L3 VENTRIX HOODIE by The North Face:
"One should appreciate the great fit, perfect hood adjustment and attractive printed reinforcement pattern at the shoulders and forearms." (Piotr Turkot, 4outdoor.pl, Managing Director)