The Virtue Vio Ascend is the latest mask from Virtue. With the Ascend, Virtue has brought a high-end mask to the market for the mid-price segment. The frame has been adapted to achieve better air circulation and communication. Many of the features of the Vio have been adopted. - Mask strap and mask glass with quick release - Virtue thermal glass - compatible with Virtue Visor and Virtue Stealth Fan