Transform the exhausting summer heat into refreshing coolness with the Chill Seeker Cooling Vest. To activate its evaporative cooling technology, simply soak the vest in water and wring it out. As the water evaporates, it absorbs heat and cools your dog for ultimate summer comfort. No chemical cooling agents, mesh layers allow air circulation, reflective panels, adjustable size, easy to put on and take off, and a slot for attaching a leash or harness!