I recently bought a pair of Red Route from infinity, superb fit and includes knee armour
I also bought some BKS just as good as the Red Route but £50.00 more expensive, includes knee and hip armour also
Slightly off track but I picked-up a Triumph 'Raptor' mesh jacket and jeans (about £50 all in) at the BMF show in Peterborough last year (next weekend folks) and it's the best hot-weather kit I've worn. Great fit, good protection and almost as cool as a vest and shorts. Clearly no use at all if you can't get to the show.
E- Sqad from France Are THE Jeans Look Cool and good protection Not cheap but I'm worth it Use them in India/Himalayas and have been comfortable and held up well