I've read disparaging comments about polyester and other synthetic fibres on the forum and I have often wondered why.
I know there is a tendency to assume natural = good, synthetic = bad, but with clothing (and many other things come to think of it), this isn't necessarily the case. When the clothing company Patagonia looked at the environmental footprint of different fibres, they found cotton to be the worst of all, owing to all the pesticides and water needed to cultivate it.
I get that polyester is not the best choice in hot climates (or if you're generally a sweaty betty!), but what is so wrong with it otherwise? Synthetics tend to dry faster and need less ironing than natural fibres, so less time spent doing laundry. And I certainly wouldn't fancy mountain trekking in a wool coat when I could choose gortex, for example.
I have a mixture of fabrics in my wardrobe, but wouldn't dismiss an item just because it was made from synthetic or semi-synthetic fibres. Interested to know other's opinions.