This is a men's full-sleeved casual shirt from Tommy Hilfiger. It is a solid, opaque shirt made from 100% pure cotton, which suggests it is soft, comfortable, and breathable. The color appears to be an olive green or a similar earthy tone, sometimes referred to as "dusty olive."

Design and Features:

 * Color: Solid olive green.

 * Material: Pure cotton, likely a twill or similar weave.

 * Fit: Appears to be a slim fit, designed to contour the body. It could also be a regular fit depending on the specific product model and sizing.

 * Sleeves: Full sleeves with what appears to be a single-button rounded cuff.

 * Collar: Classic spread collar.

 * Placket: Full button placket down the front with white buttons that provide a subtle contrast.

 * Pocket: A single patch pocket on the left chest.

 * Branding: The iconic Tommy Hilfiger flag logo is embroidered on the chest pocket, providing a classic and recognizable touch.

 * Hem: The hem is curved, a standard feature for casual shirts designed to be worn untucked.