The Mucky Nutz XL guard takes the flexible mudguard concept to an extreme, offering coverage that extends a good way both in front and behind the wheel.
That means you get much improved spray containment at higher speeds, though compared to more contained and rigid units it does let a little more through as it doesn’t follow the contour of the wheel quite as well.
In common with all flexible fenders, it works with pretty much all fork designs and there’s plenty of clearance, with it being highly resistant to clogging up.
At just 37g it’s lightweight and the asking price is very reasonable too.
A plus point of the Face Fender is that it comes with Velcro straps to secure it, meaning it’s much easier to switch it between bikes than one that uses zip ties.
The fuzzy straps are also much friendlier to paint and hold the guard securely enough to prevent any undue movement, though you can use zip ties if you really want to cinch it down tight.
It’s made of robust plastic too and bends back to shape easily.