Some materials used for school bags are cotton, rayon, polyester and plastic.
materials like leather
The process server bags are made of cotton
They are made from a variety of materials, from plastic to nylon to basic cotton.
Guitar bags can be made from many different types of materials. The different materials offer different sorts of protection. Most bags are made of canvas or a nylon synthetic blend.
There are so many different types of bags which are made in varied ways. Most bags are made from leather and other synthetic materials including velvet.
Sleeping bags are made of synthetic or cotton or wool or down (bird's under layer of feather) materials.
Computer bags, or messenger bags, are made from a variety of different materials. These can include cotton, leather (both real and artificial), canvas, and nylon.
Newspaper bags are generally made of paper or multiple pieces of paper. There are different types of paper bags. They are: laminated, flat tap, and twisted.
Fabrics, leathers, furs and various other materials.
leather metal Cotton
In a word, durability.
Fishing rod bags can be made from many different materials. However many are made from cotton and other strong fibers that can hold the rods easily. Some are known to be made of more exotic materials.