The Ruffwear Swamp Cooler Zip Dog Vest is a lightweight, streamlined solution for keeping dogs cool on hot-weather adventures. This snug-fitting vest utilizes Ruffwear's Swamp Cooler™ Tech in the chest and belly panel, employing moisture to draw body surface heat away through evaporative cooling. The vest features a 3-layer construction designed to efficiently cool your dog's core. The wicking outer layer reflects heat and facilitates evaporation, while an absorbent middle layer stores water for cooling. A comfortable inner layer transfers the cooling effect to your dog. This vest is ideal for light and fast, high-intensity activities. The stretch fabric ensures a close fit, maximizing effective evaporative cooling. The Swamp Cooler Zip is available in Graphite Gray and various sizes to ensure a perfect fit for your canine companion. It provides shading and evaporative cooling. Key features include: * Evaporative cooling technology * 3-layer construction for optimal cooling * Wicking outer layer * Absorbent middle layer * Stretch fabric for a snug fit * Available in Graphite Gray * Designed for high-intensity activities * Lightweight and streamlined design