Original Thai Fisherman Pants Trouser YOGA Massage Rayon Cotton Long Rayyon Cotton Imported RAYON Cotton Thai fisherman pants are lightweight unisex trousers that are made very wide in the waist, one size fits all. The additional material is wrapped around the waist and tied to form a belt. They are usually made of cotton or rayon. Although traditionally used by fishermen in Thailand, they have become popular among others for casual, beach, and exercise wear as well as for backpackers and pregnancy