Regular readers know that I am simply not a huge fan of trail-runners as hiking gear. You save a few ounces, but you cost your feet, ankles, and knees a lot in terms of wear and tear and lack of support.
But you Ill give some slack. You sound fit, and you no doubt know how to pack, so youll be OK.
Mainly, find something that fits and looks a little bit like a boot without the upper. Salomons XA Pro 3D Ultra GTX trail-runners ($120) are a good choice. Very sturdy, good EVA cushioning (I wish more trail-runners had polyurethane midsoles), and a Gore-Tex bootie. Salomon has a big oar in the water for endurance competitions, so they know a few things about building tough shoes.
Montrail also knows a few things. Their Hardrock trail-runners ($110) are comparable to the Salomons, minus the Gore-Tex bootie (and lets face it, more water is apt to lap over top of shoe than leak through it). Tough midsole for foot protection, excellent tread, and good fit for most.
Last candidate? Scarpas Apex GTX shoes ($120). Scarpa is primarily a boot company, and the Apex is the sort of no-nonsense shoe theyre apt to make. Kind of between the Salomon and Montrail shoes in terms of featuresEVA sole, Gore-Tex bootie, and sturdy uppers.
Try all three on to see what feels the best. And it wouldnt surprise me if you'll need two pairs, so maybe buy an extra.