Gracie was quick to adapt to Rex Specs, requiring just about an hour of training. Following the tips provided online and in the box, we started with the lens removed from the frame. Fitting took a just a few minutes and each time I took the goggles off or on, I rewarded Gracie with a treat. After 20 minutes of lens-out training and a few attempts at pawing them off, we took a break. We then moved to the clear lens, where I included her walking harness in the routine of putting on the goggles. She soon related the yellow Rex Specs with fun. Then we went for a five-minute walk and, after that, a short ride in the Ural. Not once did she try to remove the goggles after the walk and ride, even with the dark smoke lens.