Item Dimension: 16.5*15*6 inch. Material: Made from breathable mesh and canvas, durable and comfortable. Resistant to bite, abrasion, and washable. Adjustable padded straps help to reduce the burden. Extendable strap with buckle keeps the backpack stable. The pront hole can let your pet's head out to breath fresh air Pockets on both sides gives you room for storing treats and toys all day.