Single Paddle Cover

While not expensive, this is a ~very nice~ case! The construction is high quality with nice details like a loop nylon handle for carrying, a plasticized zipper pull (presumably to prevent possible damage to your blades handle)and a zippered pouch.
While the zippered pouch may not be super practical it is suitable for business cards or the like.
For summer use (when handles are subject to more moisture due to sweat) this is an excellent choice! Let your handle breathe!