|Example of linen.|
An evenweave fabric could be cotton based, or it could be lined, or made of synthetics or blends. Evenweave gets its name from the fact that there are an even amount of spaces between the weave so you can work your needlepoint a little easier. These fabrics come in varying mesh sizes, colors and textures.
Below are two different evenweaves in different mesh counts.
Congress cloth is an evenweave fabric, made up of cotton. (It's also a mono style canvas.) Congress cloth is not colorfast so be careful when getting wet.