Two-piece loungewear set, a collared shirt and matching trousers.

The color is a light pistachio shade in the softest lightweight linen fabric.

The top is a button-down shirt with a standard collar and half-sleeves or cuffed elbow-length sleeves. It features a single patch pocket on the chest.

The trousers are cropped (ending above the ankle) and have a straight-leg fit. They likely have an elasticated or comfortable waistband and pockets. 

The overall style is casual, relaxed, and minimalist.