Pure white cotton interlock knit fabric, probably with some rayon content. It is very smooth (not fuzzy or plush-feeling) and soft - somewhat similar to the mercerised long-staple cotton interlocks in the shop, if you have tried those. Slightly translucent over contrasting colours. Drapes well with a touch of structure, and has a bit of substance to it. Low elasticity. Suitable for tees, tops, and sleepwear for adults or children.