sling-back

[ sling-bak ]
/ ˈslɪŋˌbæk /

noun

Also called sling. a woman's shoe with an open back and a strap or sling encircling the heel of the foot to keep the shoe secure.

adjective

having such a strap or sling: sling-back pumps.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019