was about to buy the perennially popular mule from mud dock cycles in Bristol when the shopkeeper recommended this instead. In a nutshell, I wish I had got something else entirely.
The size and low position on the back is what attracted me to it and this aspect is very good, as are the nicely positioned hip pockets. But the good stuff stuff stops there. The fabric is quite fragile and I've already ripped a pocket through in a small tumble. The buckles are also fragile and the chest strap buckle has snapped inexplicably. Then the bladder: it sits low in the pack and the plastic grab handle presses through the thin back fabric uncomfortably. And the bladder slightly but continually leaks through the main filler cap seal.
I'll put my reliable old platypus bladder and hose in it until the pack completely falls to bits, most likely one of the feeble looking zips failing. Then i'll get an evoc!
Not suitable for mountain biking IMO . YMMV.