A great place to compare differences and see all our measurements is our comparison chart here: https://www.lillebaby.com/compare-chart
We also have a few other blog posts that might help; http://lillebaby.com/blog/which-lille-to-love-the-complete-original-vs-the-complete-embossed/
Both the Airflow and All Seasons are part of our COMPLETE lines, so they share many of the same features with the Original. The major difference between the three types is the fabric on the torso panel. The Original is made entirely of 100% cotton. The Airflow and the All Seasons both feature our 3D mesh in the torso panel, but the All Seasons features a cotton covering and a zip away panel that reveals the mesh under so you can control temperatures. The pocket is smaller on the All Seasons to accommodate the zip down panel, but it has the same 6 carrying positions and weight limits as seen on our compare chart.