Clog or loafer is a type of SHOE. It is a slip-on style of footwear, usually made of leather or synthetic materials. Clogs and loafers are often seen as casual shoes, but can also be dressed up for more formal occasions. They are popular for their comfort and ease of wear. Clogs typically have a thicker sole than loafers, while loafers often have a more streamlined look. Both styles of shoes are versatile and can be worn with a variety of outfits.