The Urban 3 is unlike anything on the market! Our trendy city backpack serves both dog and human with its dual use foldover backpack/backpack dog carrier design. When in backpack mode, simply load your gear into the bag, slide your laptop into the padded sleeve, and close the bag by folding over the top. When your pup is ready to ride, convert to dog carrier mode and let the fun begin! Available in sizes XS-L, this carrier is meant for small to medium sized dogs. The waist support strap allows for semi-strenuous activities. For Dogs Ranging 4-40 lbs (2-18 kgs) Features * Padded Laptop Sleeve * Sleeve Dimensions: XS: 7.5"x10" SM: 8.7"x12.