If you hit all types of terrain this is for youthe troy lee ace 20 has developed from an xc only short to an incredibly versatile do it all short from pump track through enduro to the xc trails its newly developed relaxed fit makes for excellent comfort with a low rise waist at front to prevent irritation welded seams mean no areas to chafe as you pedal raising comfort even further if you want just the one baggy short for all your riding needs then the ace 20s really are the shorts