If you like tucking t-shirts in then the slim fit is perfect for you. Fitted through the sleeves and the body, and shows off that waist when you tuck it into your high-waisted jeans. Nice.
The fabric is thicker than your average white t-shirt so you can wear this to work and it's not see-through.
Longer than normal sleeve length with a rolled cuff that's stitched in four places so it won't roll down when you throw it in the wash.
Machine washable fabric: 75% cotton, 25% lyocell