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 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.