when i bought it 2 months ago, they only had the Ultralon available as a custom cover for the IS. They may have better covers now.....
Ultralon Custom-Fit Covers
A unique, lightweight fabric, constructed from three different materials chosen for their superior performance characteristics:
Polyester knit outer shell: Naturally resistant to UV degradation and treated with special stabilizers for added protection.
Fibers do not absorb moisture and the fabric resists snow, rain, pollutants, bird droppings and acid rain while maintaining "breathability" to allow condensation and moisture under the cover to evaporate.
Acrylic foam middle layer: Serves as a barrier against dust and moisture while keeping the cover soft and flexible.
Flocked inner layer: Provides a soft "touch" to protect the vehicle's finish.
"Storm Resistant Rating" - Per Federal Test Standards, the fabric allows less than 1 gram of water penetration using a shower head mounted 3 feet from the fabric spraying water for five minutes.
"Breathable" - Moisture or condensation under the fabric can easily vaporize and evaporate.
Easy to Use - Lightweight fabric is compact for easy storage and daily use.
[This message has been edited by chibster (edited November 14, 2000).]