The crossword solution for the term SLIP-ONS (EASY SHOES) is ONS, which stands for 'Oxfords and Nubucks'. Oxfords are a type of shoe that originated in Scotland and England in the 19th century. They are characterized by their closed lacing system, which is a feature that distinguishes them from other types of dress SHOES. Nubucks are a type of leather that has been buffed to create a velvety texture. SLIP-ons are a type of shoe that are EASY to put on and take off, and they are usually made of either leather or canvas.