Lightweight hiking shoes should fit you well and be very durable. You don’t want to step on something like a rock and have it pierce through your shoe or be very uncomfortable as you walk the trails.
You need a shoe that can provide you with miles and miles of tough wear. The shoes should be comfortable and waterproof, and they should fit within your budget.
As you consider whether to buy the Keen Koven or the Keen Targhee shoe, make sure you think about your particular hiking habits, whether you will wear them mostly around town or in the yard, and how much you have to spend on shoes.
Each of these shoes has received some mixed reviews, so you want to go and inspect the shoe yourself to be sure that they not only fit but that they meet your expectations for quality and price.