The Twister Vented Convertible Gym Bag is made of the same strong fabric used gear, and is designed to take a beating. Mesh ventilation panels on both sides of the bag allow airflow throughout the whole bag to keep your gear from going dank. Three pockets of various sizes positioned around the bag allow you to store your accessories for easy access. This Twister bag is also designed to be the optimal size for a carry on so you can save on baggage checking when you're traveling. The bag converts styles in seconds as the backpack straps can be clipped on or tucked away into hidden pockets.