This is a men's full-sleeved, pure cotton casual or formal shirt by Tommy Hilfiger.

 * Color: The shirt is a solid, light green or olive shade.

 * Material: It is made of pure cotton, a material known for its breathability and comfort.

 * Design and Features:

   * Collar: The shirt has a classic shirt collar, sometimes referred to as a spread collar.

   * Sleeves: It features full-length sleeves with cuffs.

   * Fit: Based on the image, the shirt appears to have a slim fit, tailored to a modern silhouette.

   * Logo: A key identifying feature is the iconic Tommy Hilfiger flag logo, embroidered on the front left chest pocket. The logo consists of three horizontal stripes: white on top, red in the middle, and blue on the bottom.

   * Details: The shirt has a button-down front closure with buttons that match the fabric color. It also includes a single chest pocket on the left side.

Style and Pairing:

This type of shirt is a versatile wardrobe staple. It can be dressed up for a smart-casual or business-casual look, paired with trousers (as seen in the image), or dressed down with jeans for a more relaxed, everyday style. The solid color and classic design make it easy to pair with a variety of pants and shoes.