Our new backpacks are perfect for the outdoors with their roomysaddlebag compartments, mesh pockets, and durable zippers, whetheron the trail or around town. They are often used to give activeworking dogs a "job", thus calming them down. Removable pack takes weight off dog while at rest and allowseasy access to contents Reflective accents and bright colors for increasedvisibility Large pockets that feature wide openings and zipper closures tocarry food and water Pack includes interior mesh pockets and elastic water bottleholder Sizing: Small is for weights between 15-19 lbs and Girths between12"-25" Medium is for weights between 20-49 lbs and Girths between14"-30" Large is for weights between 50-69 lbs and Girths between20"-35" X Large is for weights between 70-90 lbs and Girths between25"-41" Care Instructions: Wash on delicatesetting with likecolors. Line Dry Size: L. Color: Blue.