Farah Easy Stretch Trousers. The Farah Trouser is one of the most popular trousers we sell. They are made to the highest standard and are great for smart and casual wear. Farah also coat this trouser with Teflon which acts as a stain repellent and lengthens the life of the trousers. Farah make this trouser from 100% Polyester, plus they come with a Farah belt. This pair of Farah trousers also has Easy Stretch for added comfort.