Ideal for sleeping in or even just for lounging and relaxing around the home - perfect for Summer. Plain Colours - 100% Cotton & Marl Colours - 60% Cotton & 40% Polyester. Plain Henley Neck T-Shirt with plain elasticated waist & drawstring lounge shorts. The Henley T-Shirt is a collarless pullover shirt, characterized by a placket of four buttons beneath the round neckline. This summery pyjama set in light comfortable cotton is a perfect addition to your holiday wardrobe.