- The Professional’s Choice 2XCool Girth is designed around COOLING, COMFORT and DURABILITY. This Girth liner is made with 2XCool performance fabric by brrr°, a technologically advanced textile that combines natural cooling minerals, active wicking, and rapid drying to create a “Triple Chill Effect” that instantly and continuously draws away heat and moisture. The removable 2XCool liner features a honeycomb pattern, silicone grip that keeps the saddle comfortably in place. The innovative "V" shape design creates a contour to allow freedom of movement in the shoulder and evenly distribute pressure.