I carry a 501 everyday in my coin pocket? little pocket on my jeans..... I just stuck a 301 in there and it fit fine, at a slight angle it just completely fit in one pair of Levis, in another pair there was a good 1/2 inch clearance, so at least in Levis, the 301 fits in the little pocket. I searched for a pair of wranglers to test it, but my wife must have thrown them all out now that I'm a city boy and no longer a farmer.....So, my input is if you wear Levis size 36, don't know if size matters, probably not as much as style of jeans.....at an angle the 301 will fit. With that said, I can't imagine what you will do with a 301 that you can not do with a 303 on a daily. as long as you stick with a Buck you will be OK!!!! check out the smaller 500 and 700 series, my preference over the 300 series, no offense to our Mod, I'll admit I've spent over $400 on 300 series knives in the past 2 weeks, but that's what happens when you add an Americas cup 315 and a 307 to your collection in the same week.......