Buy Navy Blue Elasticated Waist Plain Front Smart Joggers from Next Buy Navy Blue Slim Machine Washable Plain Front Smart Trousers from the Buy Navy Blue Regular Fit Textured Smart Trousers from the Next UK Buy Navy Blue Machine Washable Plain Front Smart Trousers from the Next. Step into sophistication with the Oui Jersey Smart Trouser in Navy. These trousers seamlessly blend style and comfort, featuring a sleek design with a touch of elegance. The elastic back ensures a perfect fit, providing both flexibility and flair. Embrace a smart and chic wardrobe essential that adapts to your every move.