Mucky Nutz Butt fender

″It prevents ′soggy arse syndrome′ i.e. your derrière getting soaked from the mud and rainwater thrown from your back wheel.
It is fitted as close as possible to said back face for optimum ′muck′ catching.
It prevents the top of your seat post from getting clogged up.
Discretion is its middle name. It′s small but effective.
It′s possibly the lightest rear mudguard available, at just 18g.
No need for separate fasteners, so it′s easy to fit and take off.
It′s compatible with all standard double rail saddles, so long as they don′t have any daft bits hanging off the rear. See Additional Images for clarification!
When off, it′s easy to clean as it′s flexible and opens flat. Simply wipe it and you′re done.″