"Microfiber" refers to a variety of different essentially plastic fabrics which all use a very fine thread.
"Viscose" is related to "rayon" and "acetate". All are made from cellulose fibers, most often wood pulp, through a chemical process. They are not plastic, although they are heavily modified.
"Ripstop" is a kind of nylon used for rugged outerwear and luggage.
"Fleece" is a weave, not a fiber. It most often refers to sweatshirt knit, which can be anything from 100% cotton to 100% polyester.
"Jersey knit" is a weave, not a fiber. It's the sort of plain knit fabric they make t-shirts out of. It can be made from any fiber.
"PET" is ethylene polyester fabric made from recycled plastic bottles. It's sold as eco-friendly, but it really is not.
"Vegan leather" is most often pure plastic. There are plant-based imitation leathers but they generally have to be bonded with plastic for greater durability and thus are neither compostable nor recyclable.
"Polyurethane vinyl" is a kind of plastic.
"Lycra", a.k.a. "Spandex" a.k.a. "Elastane" is a stretchy plastic fiber. In the US and Canada "Elastane" is called "Spandex".
"Vegan shearling" -- Uhh, I don't know what this is, sorry. If it's the combo of faux suede and fake fur that it sounds like, it will definitely be made from plastics.
"Acrylic yarn" is a form of plastic.
"Dacron" is a trade name of polyester (plastic) fiber.
"Performance velvet" is a polyester fabric chemically treated to be water-repellent and stain-resistant, used for upholstery.
"Organza" is a weave, not a fiber. It is stiffly-spun threads in an open weave and has a texture sort of a cross between a veil and a soft window screen. It's very common in silk, although there are poly versions too.
"China silk" is silk. Of course. What the heck. It is a very fine, thin, plain weave lightweight silk. (The only thing called "silk" that is not silk is "art silk" which is short for "artificial silk" and means "rayon" (see above). It was big time illegal to call rayon "art silk" for a long time because of deliberately misleading advertisers, but I have seen the term creeping back in online discourse.)
"Broadcloth" is, again, a weave, not a fiber. It's a densely-woven smooth medium-weight plain cloth mostly used for shirts. Historically it was always wool. More recently it was made from cotton. Nowadays poly-cotton blend broadcloths are most common, though you can still get pure cotton and wool broadcloths.
"Flannel" is a weave, not a fiber. It's a soft fabric brushed to have a nap on one side. Flannels used to be all wool or cotton. Microfiber is depressingly common these days.
"Sateen" is a weave, not a fiber. It's a satin weave, but not using silk, popular for bedsheets. Historically it was cotton. These days you can find it in polyester.
"Taffeta" is a weave, not a fiber. It's a crisp, plain, lightweight, tightly-woven fabric. The nicest taffetas are silk. They also come in nylon and polyester, sometimes rayon if you're lucky.
"Moisture-wicking" just means a fabric acts a certain way. It's neither a weave nor a fiber. Wool is naturally moisture-wicking. The term is mostly used these days to describe artificial fibers.
"Antimicrobial" is a chemical finish. It's not a kind of fiber.
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