Polyester fabrics and fibers are extremely strong.
Polyester is very durable: resistant to most chemicals, stretching and shrinking, wrinkle resistant, mildew and abrasion resistant.
Polyester is hydrophobic in nature and quick drying. It can be used for insulation by manufacturing hollow fibers.
Polyester retains its shape and hence is good for making outdoor clothing for harsh climates.
It is easily washed and dried.