Snoozer Lookout Car Seat Measures 19 H x 22 W x 17 D; safe for pets up to 25 pounds Quilted nylon cover repels hair; Removable washable/dryable cover security strap included, Medium size is also referred to as Oversize Sherpa lining for warmth in winter and cool in summer; Simulated lamb's wool interior Connection strap included for the seat belt to join the harness Comfortable foam form; Available in a variety of fabric options Measures 19 H x 22 W x 17 D; safe for pets up to 25 pounds security strap included, Medium size is also referred to as Oversize Sherpa lining for warmth in winter and cool in summer; Simulated lamb's wool interior Connection strap included for the seat belt to join the harness Comfortable foam form Simulated lamb's wool interior Connection strap included for the seat belt to join the harness Available in a variety of fabric options Measures 17 inches high by 22 inches wide by 19 inches deep; safe for pets up to 25 pounds Comfortable foam form Simulated lambs wool interior Connection strap included for the seat belt to join the harness Available in a variety of fabric options Small: 19H X 15W X 17L (outside)/ 12W x 14L (inside)- Recommended for pets up to 18 lbs. Medium: 19H X 22W X 17L (outside)/ 18W x 14L (inside)- Recommended for pets up to 25 lbs.