Munro Casita Slide Sandal

Price Range: $$

At Zappos.com:
Rating: 4 out of 5 stars – 98 ratings
Includes many 5 star reviews from narrow buyers, about half of whom mentioned ordering a 1/2 size up.
Also includes a review that said the narrow width was too narrow, and a review that said the narrow width was not narrow enough.
View shoe on Zappos site

At Nordstrom:
Rating: 4.5 out of 5 stars – 124 ratings
Includes several 5 star reviews from narrow buyers.
Also includes a 4 star review from a narrow buyer who suggested narrow width buyers consider going up a 1/2 size, and a review from a buyer whose foot was between the narrow and super slim widths.
One narrow buyer said the fit was good and the shoe was comfortable, but the buyer did not like the slip/slap heel sound when walking.
View shoe on Nordstrom site