Just like the design criteria, the material is also an important point to consider when choosing a toiletry bag. When it comes to travel, I suggest you buy toiletry bags whose materials have these characteristics: durable, waterproof and easy to clean. Some of these materials can be plastic, waterproof fabric, leather and canvas. However, nothing is perfect, each of them has advantages and disadvantages, so it depends on your goals. Plastic: A plastic bag is easy to clean, water resistant and transparent. It is perfect for traveling abroad. However, it is easy to discolor if you carry the bag in direct sunlight. In other words, you need to take care of the bag regularly to keep it looking good.Plastic is mostly used to make the TSA approved travel kit, as it is transparent. TSA can easily check it from outside.Waterproof fabric: The most popular material to make a bag. It is durable, waterproof, countless colors and styles to choose from. Some even have cool patterns that make the bags look more fashionable. However, it can break down over time.I particularly like it the most. My top pick, honestly. Apparently, you can easily carry it anywhere without worrying about water damageLeather: The leather toiletry bag is very durable, easy to clean and also looks trendy. However, it can be damaged if it gets wet.Believe me, I like this material too. I even have a small store that makes handmade leather stuff. However, you probably don't want to take it to a place where there is a lot of water. It's easier for it to get damaged. You will have to change quite a few bags if you do.Canvas: This material is probably considered the queen among the other materials for making toiletry bags because it is sold everywhere in every style, color and price range. Many toiletry bags that are made from this canvas material have images, or even photos printed on the fabric.However, you need to keep the canvas toiletry bag away from liquids such as watercolor, ketchup, soy sauce, etc., unless you want to get rid of your favorite.