The oiled leather broke in within a few days and now molds to my feet like they were made for me. I wore them through a gravel parking lot and the rugged PU sole never slipped once.
Ruby★★★★★
Wore these for a two-mile walk on a gravel trail the first day and the oiled leather didn't rub at all. The PU sole grips way better than my old flat sandals, even on loose dirt.
Miles★★★★☆
Wore these all over a rocky trail and the sole gripped better than I expected for a sandal. Only gripe is the oiled leather felt a bit stiff around the ankle strap the first couple days.