A gym bag may be the last thing on your mind when you prepare for a workout, but it is an essential accessory for keeping your possessions safe and clean. Durable and available in a wide range of styles, gym bags can be produced with various kinds of materials, like leather, canvas and nylon. Pouches, water bottle holders, zips, straps – each bag has a different feature and if you are having trouble choosing one, consider one of the following styles based on your budget and the frequency of your trips to the gym.