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.
Available in narrow and super slim width.
View shoe on Zappos site