It is very lightweight but it will probably feel heavy to me if I’m carrying it around an airport with a 17 pound dog in it. This airline approved pet carrier has mesh panels for ample ventilation and locking zippers for safety. I HONESTLY LOVE EVERYTHING ABOUT IT! It is supposed to be a good bag for traveling by plane. This carrier also has an adjustable strap, security strap and locking zippers for safety. By Jehnay I absolutely love this carrier! Bought the large, for up to 22 pounds, size. Bon voyage! Offers ventilation and top and side entry makes it easy to load your companion. Am planning to use it for the puppy I’m getting. Please contact your airline prior to booking a flight to ensure this pet carrier meets their specific requirements. 2) The carrier is made very well in its support and sturdiness. This button opens a dialog that displays additional images for this product with the option to zoom in or out. I SPENT WEEKS TRYING TO FIND THE BEST CAT CARRIER AND I'M SO GLAD I FINALIZED ON THIS ONE!!