We know how stressful traveling with your furry friend can be and that's why we created the Karry-On! The Karry-On is designed to fit in the under-seat stowage area of most airplanes with plenty of mesh to provide airflow to keep your pet cool and comfy during travel. You can also use the Karry-On as a portable crate on your road trip adventures! Recommended for pets up to 20 lbs (9.1 kg) Features TSA Approved Works great alone for travel or in tandem with the K9 Sport Sack Leakproof with removable liner Light and foldable for easy storage Specs Length - 18" (46 cm) Width - 10" (25 cm) Height - 9" (23cm) Weight - 1.8 lbs (0.8 kg) Safety All K9 Sport Sack carriers are specially developed under the close direction of animal professionals, veterinarians, dog trainers, and outdoor product engineers to be ergonomic, safe, and strong.