Alternative to BMW Rallye R pants?

[Farside13]

I'm looking for an alternative (another brand) of adventure pants that will be very similar to the Rallye 3 BMW trousers. I own the city pants and find them very comfortable and the knee protection seems to be the best I've come across. I'd like to get the Rallye 3 pants for the Enduro Himalaya trip but I find the BMW pants very expensive and I'm also a Triumph rider so I'm not sure they'll work well on my bike

Do you know of another brand that makes pants that good a quality with the really good knee protection (important)?

Thanks for your help