Designer Kaftans

A kaftan is a cotton or silk cloak buttoned down the front, with full sleeves, reaching to the ankles and worn with or without a sash.

The kaftans worn by the Ottoman sultans constitute one of the most splendid collections of Topkapı Palace in Istanbul. Some of them were so precious that they were given as rewards to important dignitaries and victorious generals during elaborate religious festivals.
Kaftans were often embroidered on the front and on the sleeves. In the 14th century large patterns and subdued colours were used, these became both smaller and brighter in the next century. By the second half of the 17th century, the most precious fabrics were those with 'yollu': vertical stripes with various embroideries and small patterns, the so-called "Selimiye" fabrics.
Most fabrics were manufactured in Istanbul and Bursa, but some came from as far as Venice, Genoa, Persia, India and even China. Each had very specific characteristics and was named accordingly: there was velvet, aba, bürümcük, canfes, gatma, gezi, diba (Persian ديبا), hatayi, kutnu, kemha, seraser (Persian سراسر), serenk, zerbaft (Persian زربفت), tafta (Persian تافته), and many others; the most often used colours were 'China blue', 'Turkish red', violet, "pişmis ayva" or cooked quince, and saffron yellow.
The Topkapı Museum, Istanbul, possesses a large collection of Turkish kaftans and textiles.

Russian kaftan
Russian kaftans of tsar Peter the Great, 1680-90 In Russia the word "kaftan" is used for another type of clothing: a kind of a man's long suit with tight sleeves. By 19th century Russian kaftans were the most widely spread type of outer clothing among peasants and merchants. Currently they are used as a ritual religious clothing by the most conservative sect of Old Believers.

Moroccan kaftan
In Morocco kaftans are only worn by women, and are substantially different from their Turkish counterpart, see Takchita. The kaftan is the original Moroccan dress. It can be dressy casual to extremely formal (similar to a western dress) depending on the materials used. They can be worn at dinner parties, baby showers, engagement parties and weddings.

Batik kaftan
In South East Asia, batik kaftans are produced for cool floaty feeling in hot sweltering heat of the tropical weather. While batik is very acid fast, numerous kind of fabrics are used ranging from silk to viscose. Florals and abstract designs heavily influence the kaftans from this region.

West African kaftans
Main article Boubou (clothing) In West Africa, a kaftan is a pullover robe. In French, this robe is called a boubou. Kaftans are worn by both men and women.[3] In West Africa, the female robe is called a Kaftan or a boubou, and the male robe is the Senegalese kaftan. (courtsey - wikipedia)
Now adays, designer kaftans are popular for both men and women.