Made of lightweight and durable soft polyester; one side opens fully for easy access and other side opens halfway to offer a treat or reassuring scratch under the chin. Extra-large, scratch and tear-resistant reinforced mesh windows on the top and all four sides provide exceptional ventilation and visibility; comes with two removable fleece padded hand grip and detachable padded shoulder strap make it easy to carry, while the mesh storage pocket provides space for your petâs necessities. Safety features include dual seat belt straps, reflective strips for nighttime visibility, and mini-buckles on the zippers to keep your pet secure. Measures 17.5 x 10 x 11 inches; airoved and designed to fit under the seat on Southwest, American, JetBlue, Delta, Virgin, Alaska, Frontier, Allegiant, United and more.