Is polyester waterproof?

Polyester is not a naturally waterproof fabric. However, waterproofing sprays such as Aqua Armor and Thompson's Water Seal provide the required coating to protect the fabric against potential water damage. Waterproofing sprays work by bonding themselves to the fabric with the application of heat.

Polyester is a resilient fabric with excellent color-retaining capabilities. However, the fabric's disadvantages include retention of body heat and a lack of breathability. The fabric is soft and comfortable to the touch, and caring for the fabric is simple. Most polyester can be washed in warm water and dried using a normal wash cycle. Polyester fibers are also wrinkle-resistant.