I have narrow feet (specifically ankles) and had been riding several models of Vans boots for the last 5+ years in a half size smaller than I should have just to reduce the space. I found it to be a good solution.
Last year I bought a pair of Celsius Cirrus and they fit my narrow foot extremely well and in the size I actually take. They have insertable j-bars for ankle lock, which I haven't yet put in (I haven't needed them, and plan on seeing how much the liner packs out before I need them). The speed lace system is excellent. And they're med stiffness boot that handle steeps and park equally well.