Front and side ventilation windows, adjustable padded shoulder strap that also can be used as a leash, non-collapsible, custom hardware, made in the USA, airline approved, detachable fur lined pad. This carrier is also equipped to be used as a kennel when traveling with your pet. Its a home ways from home! Small 14 L X 8 W X 9 H, weight capacity 6 lbs. Large 18 L X 9.5 W X 10 H, weight capacity 15 lbs.