Do 95% polyester and 5% spandex have a lot of stretch?

This composition is mainly used in weft knit. The fabric stretchy is based on the composition of spandex yarn. because for the polyester : DTY have a little stretch and FDY even has no stretch. while the spandex yarn is a good stretch yarn. read more

Yes they do have a considerable amount of stretch, I wear 95% cotton and 5% spandex Jeans they are very comfortable and easy to wear all day long. read more

Yes, together, yes, spandex is specifically a stretch fabric, its why it was created to stretch and suck in like a girdle. Many polyesters do not stretch but it is often woven with other yarns or materials that give it stretching capabilities. read more