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. It’s 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.