Tie-dye is a process of tying and dyeing a piece of fabric or cloth which is made from knit or woven fabric, usually cotton; typically using bright colors. It is a modern version of traditional dyeing methods used in many cultures throughout the world. Tie-dyeing is accomplished by folding the material into a pattern, and binding it with string or rubber bands. Dye is then applied to only parts of the material. The ties prevent the entire material from being dyed. Designs are formed by applying different colors of dyes to different sections of the wet fabric. A wet t-shirt is much easier to dye than a dry t-shirt. Once complete, the material is rinsed, and sat aside for a few hours until the dye is set.