First of all it might help to know a little about the origins of your saddle cover.
Wild Hairless Naugha
Native to the mountainous regions of Upper-Lower Slobovia. Imported and released into various sections of California (largely unsuccessful attempt at natural pest eradication) in the mid nineteenth century.
The Naugha is a habitat specialist and thrives only in the pristine Old-Growth Bluewood forests of Upper-Lower Slobovia, specifically in the Naugha Mountain Range. It requires small year-round streams of less than one foot width, and one inch depth, with browse plants nearby such as tender succulent grasses.
The Naugha is a harmless mammal of the genus Naugha. There is only one species in this genus, and little is known of it’s natural life cycle and mating habits. The Naugha is a small creature that resembles a cross between a turtle, a musk ox, and a weasel, but with a small prehensile trunk, no hair, webbed feet and unique-among-mammals three toes. The wild species will reach a height of several inches at maturity. Wild native Naugha has a bright red skin color which stands out in the green areas of it’s natural environment. Due to its lack of natural camouflage, the Naugha is generally found with thick moss growing on its skin which it will cultivate. Wild Naugha is often confused with a moss covered rock by the uninitiated.
The Naugha is a reclusive creature, that has not been adequately studied in its natural environment due to inaccessibility to the natural ecosystem.
One Naugha's hyde will, when stretched cover a single bicycle seat.
You might try vinyl conditioner to help your problem with cracking.