Pajamas Design

pajamas
(pajama) (usually plural) loose-fitting nightclothes worn for sleeping or lounging; have a jacket top and trousers
A suit of loose pants and jacket or shirt for sleeping in
(pajama) a pair of loose trousers tied by a drawstring around the waist; worn by men and women in some Asian countries
Pajamas, also spelled pyjamas (see also spelling differences) can refer to several related types of clothing. The original paijama are loose, lightweight trousers fitted with drawstring waistbands and worn in South and West Asia by both sexes.
A pair of loose pants tied by a drawstring around the waist, worn by both sexes in some Asian countries

design
the act of working out the form of something (as by making a sketch or outline or plan); "he contributed to the design of a new instrument"
an arrangement scheme; "the awkward design of the keyboard made operation difficult"; "it was an excellent design for living"; "a plan for seating guests"
Decide upon the look and functioning of (a building, garment, or other object), typically by making a detailed drawing of it
Do or plan (something) with a specific purpose or intention in mind
plan: make or work out a plan for; devise; "They contrived to murder their boss"; "design a new sales strategy"; "plan an attack"