Sherpa Original Navy Dog Carrier Approved for use on most airlines and included in Sherpa's Guaranteed On-Board program Patented spring wire frame allows the rear end of the carrier to be pushed down several inches to conform to under-seat requirements Mesh windows for ventilation, top and side entry with locking zippers for safety Padded adjustable, no-slip carrying strap, seat belt/luggage strap, machine-washable faux lambskin liner Rear pocket for convenient storage of treats, leash, bags, or anything else your furry friend might need on the go