Voile is a light weight woven fabric made with high-twist or voile-twist spun yarns that are combed or worsted, usually made of 100% cotton or cotton blends including linen or polyester. Because of its light weight, the fabric is mostly used in soft furnishing. Full length curtains in hot countries are made with voile and used as window treatments, mosquito nets etc. When used as curtain material they are similar to net curtains.

Voiles are available in a range of patterns and colours, (unlike net curtains which are generally white or off-white). Because of their semi-transparent quality, voile curtains are made using specially manufactured heading tape that is less easily noticeable through the fabric. Voile fabric is also used in dress-making, either in multiple layers or laid over a second material.