What is felt, satin, cotton, lycra, nylon and crepe made out of?

The language used in the question is not very clear. But one thing is clear that all the terms mentioned in the question are connected with textile industry. So without trying to edit the question I will explain what each of the six terms in the question mean.

Felt: It is a fabric made of wool or other animal fibre matted together.

Satin: Satin refer to a particular type of weave used for making a fabric rather than a particular material. Satin can be made of silk, rayon, nylon or cotton. Satin fabric is characterized by a smooth silky feel.

Cotton: Cotton is actually name of the material used for making yarn and fabrics. It is a organic material grown in fields. The cotton fibre is obtained from bolls of cotton plant.

Lycra: Lycra is a trade name for a yarn that is stretchable. It is made by winding a yarn around a stretchable fibre.

Nylon: Nylon is actually the name of the material used for making fibres and fabric. It is the first synthetic fibre used for making textiles. Now there are several different varieties of nylon. All these varieties are some variations of polymers and polyamides.

Crepe: Crepe is a woven or knitted fabric which has a crimped look. Crepe can be made of any type of fibre such as silk, nylon, cotton, or wool.