Abstract: A footwear has an inner footwear body with a sole pad, and an outer footwear body with a sole pad rest. Each of the inner and outer footwear bodies has an instep member, and the inner footwear body has an adjustable joining band, so that the inner footwear body can be separably united on the outer footwear body by the adjustable joining band. When the inner footwear body is soiled, it can easily be removed and washed or exchanged for new one, thus to keep the footwear clean.

Abstract: Footwear has an inner footwear body with a sole pad, and an outer footwear body with a sole pad rest. The inner and outer footwear bodies each have an instep member having an adjustable joining means, so that the inner footwear body can be separably united on the outer footwear body by the adjustable joining means. When the inner footwear body is soiled, it can easily be removed and washed or exchanged for new one, thus to keep the footwear clean. The footwear such as mules, scuffs and sandals is easy to handle and especially convenient for use in public facilities such as hotels, restaurants, hospitals and meeting places.

Abstract: Lactic acid esters of an .alpha.-branched fatty acid possessing an excellent hair conditioning effect are disclosed. Typical example is sodium 2-heptylundecanoyl acid lactate prepared by the reaction of 2-heptylundecanoic acid and lactic acid in the presence of an alkali such as sodium hydroxide. This compound gives a shampoo composition in conjunction with an anionic surface active agent, and a hair rinse composition when a quaternary ammonium salt is formulated. The compositions have excellent conditioning effects on use such as good slipperiness and hair curling formation or retention performance.