The covers are made of 100% polyester and are described as waterproof. Seams are taped for added waterproof protection.

The covers include extra-large stay-open vents that increase airflow under the cover, helping to reduce condensation buildup.

A patented tunnel hem combined with a click-close strap system provides a secure, snug fit and helps reduce wind lofting.

Hand wash with water only; do not use soap.

Weights range from 6.83 pounds up to 9.1 pounds, depending on the cover size.