Hi is there place were there sell elephant pants and knickerbockers shorts please I been told there very good to wear and sleep in
Go to a market. Elephant pants are ridiculously cheap ;-)
You will see them everywhere in stalls and markets when you are walking around in KL. Definitely no problem in finding them and some prices were a bit more than elsewhere in Thailand but still cheap. Most were charging around 200 baht but you can haggle.
They are very comfortable and I always buy lots to wear as sleepwear and around the house wear - theyre fantastic!