EzyDog Summit Dog Backpack RUGGED, PRACTICAL, SUMMIT BACKPACK - Our dog harness and integrated backpack provides your maximum comfort and control. Our Summit Backpack features a durable polyester outer shell and soft cotton lining that keeps your pooch comfortable and happy. RUGGED AND COMFORTABLE TRAIL READY HARNESS - You get all the practicality and trail readiness of a harness plus cargo capacity. Fully adjustable chest strap provides a snug, secure fit - Removable with one click. Our simple, utilitarian design combines comfort, functionality, and style. TWO INTEGRATED SADDLE BAG PACKS - Each bag is designed with two roomy securable compartments with waterproof zip closures. Plus, an easy-access outer pocket for storing items you need quickly. PREMIUM FEATURES: Reflective strips on the front and back for increased safety and visibility. Soft touch Traffic Handle for extra security when needed. Durable rust-proof welded D-ring provides a secure anchor for leashes. ID tag attachment point. MEDIUM SIZING: The Medium size Summit Backpack fits 35-70 Lb. dogs with body girth of 22-37 Inches. Pack Dimensions: 11" x 8" (450 cu in)