For the British alternative rock band, see Felt (band).

Felt is a non-woven cloth that is produced by matting, condensing and pressing woollen fibres. While some types of felt are very soft, some are tough enough to form construction materials. Felt can be of any colour, and made into any shape or size.

Many cultures have legends as to the origins of feltmaking. Sumerian legend claims that the secret of feltmaking was discovered by Urnamman of Lagash. The story of Saint Clement and Saint Christopher relates that while fleeing from persecution, the men packed their sandals with wool to prevent blisters. At the end of their journey, the movement and sweat had turned the wool into felt socks.

Feltmaking is still practised by nomadic peoples (Altaic people) in Central Asia and northern parts of East Asia (Mongols), where rugs, tents and clothing are regularly made. Some of these are traditional items, such as the classic yurt (Gers), while others are designed for the tourist market, such as decorated slippers. In the Western world, felt is widely used as a medium for expression in textile art as well as design, where it has significance as an ecological textile.

Ian Matthias Bavitz (born June 5, 1976), better known by his stage name Aesop Rock, is an American hip hop artist and producer. He was at the forefront of the new wave of underground and alternative hip hop acts that emerged during the late 1990s and early 2000s (decade). He was signed to El-P's Definitive Jux label until it went on hiatus in 2010. The music site betterPropaganda ranked him at number 19 at the Top 100 Artists of the Decade. He is a member of the groups The Weathermen, Hail Mary Mallon (with Rob Sonic & DJ Big Wiz), and Two Of Every Animal (with Cage). Regarding his name, he said: "I acquired the name Aesop from a movie I had acted in with some friends. It was my character's name and it sort of stuck. The rock part came later just from throwing it in rhymes."

Bavitz was born at Syosset Hospital in Syosset, New York and raised in Northport, Long Island, New York to his father Paul and mother Jameija. Ian has two brothers: Chris (born 1975) and Graham (born 1977). Ian, along with his siblings, was raised Catholic but later on in his life became agnostic. Bavitz attended Northport High School in 1990 and graduated in 1994. He married Allyson Baker, guitarist and vocalist of rock band Dirty Ghosts in 2005. They now reside in San Francisco, California. The couple has now since divorced.