Crotch relief

[He Man]

ever get kneed in teh nuts. you want teh steel cup for martial arts.

the carbon flex cup is also a good one for martial arts. the plastic ones well. they deform too much and are pretty much useless.

[Goat_Herder]

I think we are all getting a little TOO comfortable with each other... 

[BoDiddley]

Got my cup, gave it about three hundred miles and it is not for me.  It felt like a new set of armor but not worth the hassle trading one crunch for a different one.   The mod to my pants keeps me comfortable.  Protection yes but...........

[Privateer]

as an alternative to the bolt on buckle, there are many versions of these:
http://www.motorcyclebootstraps.com/Motorcycle-Boot-Straps.html