Salwar kameez (shalwar qameez) is the national dress of Pakistan.  Salwars are loose trousers designed in various styles. Originally, the  salwars were flared towards the bottom with embellishments or fancy  cutwork. Today, there are many variations of the same. At times, the  bottom of the salwar is narrow and fitting. The salwar kameez is  important especially during the festivals celebrated in Pakistan, for  men as well as women. Salwar kameez is also popular due to the comfort  factor. The salwar is tied at the waist with the help of a drawstring  and more recently; elastic is also used for the same purpose. The fit is  generally baggy or tapering. Narrow tight fitting salwars are known as  churidars. These have become a rage in the recent years even in India. 
The kameez is large and loose fitting tunic worn with the baggy salwar.  Men as well as women wear the same attire, with a difference in the  colors used, fits, silhouettes and the kind of embellishments used.  Interesting patterns woven with lace are used to add femininity to the  kameez. Women also use a dupatta with the salwar kameez. Dupattas are  long yards of cloth available along with the salwar kameez because their  color and pattern is coordinated as per the entire ensemble. Women also  wear scarves or shawls with the salwar kameez that is used to wrap  around the head and neck area. A variety of synthetic or cotton fabrics  are used in the creation of the salwar kameez. 
Although the sherwani originated in India during the 18th century, it is  also the national dress for men in Pakistan. Off late, sherwanis  designed for women are gaining popularity. A sherwani is a long coat  worn with a salwar. Sherwanis are generally made from heavy fabrics. 
The achkan is yet another important dress of Pakistan. An achkan is a  long jacket, which also originated in the 19th century in India. These  are long sleeved coats reaching all the way to the knees. At times,  achkan can even go lower. 
Apart from the traditional clothing worn by Pakistanis, on similar lines  with India, one can see other forms of western attire as well. But the  traditional clothing definitely has a strong foothold in the modern  society even today.