Another addition to this thread. The Gray Nicolls 2017 Test Thigh
This is a standalone outer thigh guard, that retails for around £17.95
I've had a look online and the inner thigh pad would be an additional £17.50, making the cost of a "set" £35.45
Considering you can get a Gray Nicolls all in one thigh guard set for £24 these probably wouldn't be the best value for money.
The guard itself is a simple design, with 2 straps and 2 fixed points to attach them to.
The fit is comforatable and gives a good coverage, but as with all off the shelf thigh pads you'll have a little gap the ball will almost certainly manage to find.
This guard is incredibly light and thin, with a towelled back. This is great for comfort, but the protection is reduced as a result. The protection level will be fine for club cricket, but I definitely felt it more when I wacked myself with the mallet than I did wearing Aero P2s.
Overall a good product that's very light and thin, so should fit nicely under even the most skin tight of whites! It will offer sufficient protection for a club player. Value for money wise you can get better "bang for your buck" elsewhere, but they're not the most expensive either.