fabrics are dynamic, they move. air pushes them around people interact with them. but you can set them and design them to be static, sails, sun shades, fibreglass.
further definition of fabrics is any material made through weaving, knitting, spreading, crocheting, or bonding that may be used in production of further goods (garments, etc.).that covers anything from felts to complex weaves.
also density of fabrics affects how they feel. some can be more than a kilogram per square metre and if made into a garment would feel very heavy. for ex. denim is a relatively heavy fabric. on the other extreme fabrics can be be very light weight. getting down to tens of grams per metre, such as silk.