I was hiking in Nevada a few weeks ago and talked briefly with a hiker who was descending the mountain while we were on our way up. He had nice gear that included a fixed blade knife in a sheath attached to the front of his left shoulder strap, and this seems like a good thing to add to my day-pack. I wish I'd asked what he was carrying, but I didn't. What fixed blade knives do folks recommend, esp. for a day pack? I usually carry a folding knife but I like the idea of having something more accessible.