Shoe type (4-2)
(Other definitions for slip-on that I've seen before include "Shoe, not a 10" , "Shoe without laces" , "Garment or shoe with little or no fastening" , "Without fastening" , "Not a lace-up" .)
(Other definitions for brogue that I've seen before include "Stout leather shoe" , "Marked accent" , "afoot?" , "last work?" , "Thick and heavy shoe" .)