The safe, reliable, and easy to use dog car crate that protects both dogs and people Thule Allax threshold compatible dog crate is crash tested from the front and the rear, as well as a simulated roll-over scenario For cars with a threshold above 40 mm and up to 170 mm for XS and up to 245 mm for S, M The door's gas damping mechanism ensures a gentle open and close, enhancing your everyday interactions. The crate has a built-in lock for added security. The window and the openings in the cage make it easy for you to check on your dog at any time. The crate is equipped with an escape hatch, that enables opening of the crate from the backseat.