I have a similar question...

We are currently in the process of updating our URL structure to contain keywords and directories. Would these examples be considered as keyword stuffing as teh same keywords appear more than once or twice?

/lanyards-wristlets/lanyards/cotton-lanyards_ca-841-1.html
/computer-accessories/mouse-pads/frame-it-mouse-pads/frame-it-flex-mouse-pads/frame-it-flex-heavy-duty_ca-680-1.html