Polyester is a transparent semi-crystalline material which also happens to have a high barrier to moisture. It also has a favorable strength-to-weight ratio. Polyester or PET has good chemical resistance and does not react with foods and liquids. It is also a shatter-proof material and hence can replace glass when used to make containers.

Overall, the key characteristics of polyester include durability, strength, resistance to chemicals, moisture-wicking properties, color retention, and resistance to environmental factors. These qualities contribute to its versatility and popularity in various industries, including fashion, home furnishings, and industrial applications.

Polyester is loved for its durability, resistance to most chemicals, minimal shrinkage, and quick drying properties. It's also wrinkle-resistant, making it a dream for anyone who dreads ironing. Plus, it retains its shape really well, which means your polyester clothes are likely to look just as good as new after multiple wears and washes.