- Loose Fit, formerly known as Original Fit, is cut larger to provide a roomier fit in the chest, shoulders, and waist. The K126 - Long Sleeve Workwear Crewneck T-Shirt and K231 - Long Sleeve Logo T-Shirt are Carhartt's two most popular long sleeve, loose fit t-shirts.
- Relaxed Fit shirts are snugger and fit closer to the body. Carhartt's most popular relaxed fit, long sleeve shirt is the 104617 - Force Relaxed Fit Midweight Long Sleeve Pocket T-Shirt.
For more information before you buy, read over the Carhartt Shirt Guide to see how these fits differ and which one is right for you.