I have Moab Ventilators... I can't wear them with heavy loads or when the trail is very rocky. They are so flexible and comfortable and ventilated, but do nothing to protect feet from pointy sharp rocks. Love them for dayhikes and light pack trips.

Off trail I have gone to Asolo FSN 85 (NO GORETEX FOR ME) - the sole is sturdy enough to protect my flat, girlie feet and Superfeet add a little extra. They are a good compromise between heavy boots and light hikers.
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