I bought this along with the Keen Targhee 3, expecting them to be pretty similar. They are NOT. This shoe has a VERY large toebox, and the entire shoe seems to be a bit larger than the Targhee 3. I suspect maybe this is because the Brixen is designed for winter use, and thus Keen is assuming you'd be wearing very thick socks? My feet are almost always too warm with socks on, so I don't own any socks thicker than an athletic sock (no wool hiking socks or anything). I tried the thickest athletic sSee full review