- kabuki dress: collarless wrap-around dress with kimono sleeves, held closed by a sash
- khaki: fabrics of a dull, yellowish tan color, whether serges, drills, or whipcords, are called by this name
- kiltie dress: dress style adapted from the Scottish kilt in which the front of the skirt is plain with wrapped side closing fastened with a safety pin, the remainder of skirt is knife-pleated and joined to a simple tailored top
- knit: process of making a fabric, or an item of apparel, by the interlacing of loops either by machine of by hand
- knock-off: an item of apparel coped from a more expensive item and generally manufactured from lower-priced components so it can sell at a lower price
