FIT: The Zerraport II has a reasonably forgiving fit—my feet are E width in front, no problems with these sandals. They run true to size; I wear a men’s 11 1/2 or 12 in street shoes; the size 12 is a good fit for me. Keen‘s Zerraport II is a successor to their Zerraport, which in turn is a successor to the long-discontinued hydro guide. https://www.trailspace.com/gear/keen/hydro-guide/

COMFORT: Like virtually every Keen sandal I have ever worn, there is a moderately firm but forgiving contoured footbed. It’s a strength of this brand. The strap material is fairly soft polyester; they’re not rough or abrasive. A significant improvement is the size and shape of the toe bumper and the way the strap runs through it; it used to be a source of friction, but Keen reduced the size of the toe bumper. Instep view