yes, the fabric is relatively thin, but that's the only flaw in this jacket. I've ridden in it pretty hard (glades, rocks, etc) for over 50 days and it hasn't ripped, yet.
The plexus "pinnacle" an excellent shell that fits in perfectly with most california mtn weather. Love the Boa in the hood, big pit zips, powder skirt and the minimalistic pockets (no flaps to ice up). 20/15K doesn't come by often in a shell. It's also a great looking jacket with a cool lettered print.
Only thing I would criticize it for is the "tailored fit". It's actually very roomy in the arms and chest (allows for plenty of layering), but the bottom hem only drops just below the belt - doesn't cover the crotch or rear end areas like a relaxed/baggy fit would.