For those who want the Coverking Custom Fit, but don't need protection from heavy weather, these Custom Car Covers are a great choice. The standard cover is made out of a lightweight, three layer material which protects from dirt, dust, light water, bird droppings and other mild hazards. It is perfect for use in a garage or under a carport. Standard cover is also treated with UV inhibitors, which helps it stand up to ultra-violet rays emitted by the sun. Although it contains these UV inhibitors, it is not recommended for very sunny climates - Silverguard™ would be a better option. Silverguard™ is a 300 denier polyester material with a reflective and water resistant coating. It is a great choice for all-round car cover use, suggested for most conditions. The silver coating on Silverguard™ does an excellent job of reflecting sunlight, while keeping rain and animal droppings from damaging the vehicle finish.