10 Best Men's Thermal Long Sleeve Shirts 2025 in the United States

The Amazon Essentials Men's Regular-Fit Long-Sleeve Waffle Shirt in Charcoal and Large size is a practical choice for those seeking a versatile thermal shirt. Made from a blend of 60% cotton and 40% polyester, the material strikes a balance between softness and durability, making it comfortable to wear throughout the day.

The waffle texture enhances its thermal properties, trapping heat to keep you warm in colder weather. However, it may not be the best choice for extremely cold climates where thicker, heavier thermal wear is needed. The fit is regular, providing ample room through the shoulders, chest, and waist, which is great for layering but might not be snug enough for those seeking a tighter fit.

At 8 ounces, the shirt is lightweight, adding to its comfort but potentially affecting its ability to provide sufficient warmth on its own. The moisture-wicking capabilities of the fabric are not explicitly highlighted, so it might not be the best choice for high-intensity activities that cause significant sweating. The seams and construction seem to be well-executed, with ribbed trim at the neckline and sleeve cuffs adding a neat finish and three-button placket providing some styling options. The neckline features standard ribbed trim, which is comfortable but not particularly distinctive. In essence, this shirt is a reliable, everyday thermal option that excels in comfort and versatility, though it may not offer specialized performance for extreme cold or heavy activity.

The CarharttMen Loose Fit Heavyweight Long-Sleeve Logo Sleeve Graphic T-Shirt is made from 100% cotton, which makes it comfortable and durable. This shirt features a rib-knit crewneck and cuffs, providing a snug fit around the neck and wrists. The side-seamed construction helps minimize twisting, ensuring the shirt maintains its shape throughout the day.

Additionally, the shirt has a tagless neck label for added comfort and the Carhartt signature logo printed on the sleeve, giving it a stylish appearance. It's designed to be machine washable, making it easy to care for, and it uses a pull-on closure for convenience.

The Carhartt Men's Force Relaxed Fit Midweight Long-Sleeve Pocket T-Shirt is designed to keep you comfortable during active days or cooler weather. Made from a blend of 59% cotton and 41% polyester, this shirt offers a good balance of softness and durability. The midweight fabric is not too heavy, making it suitable for layering or wearing on its own. Its Force technology helps wick away sweat and dries quickly, which is great if you tend to get warm or sweat while working or exercising. You’ll also appreciate the UPF 25+ protection, adding some defense against the sun’s rays.

The relaxed fit provides room to move without feeling tight, and the raglan sleeves improve your range of motion, which is handy during physical activity. Smooth flatlock seams reduce irritation, an important feature if you wear the shirt for extended periods. The crew neck is a classic choice, comfortable and easy to layer under jackets or sweaters. While the shirt is midweight, it might not be warm enough on its own in very cold conditions without layering. Also, the blend fabric may not feel as warm as 100% cotton or wool, but it’s easier to care for and quicker to dry.

This shirt is an excellent choice for men seeking a practical, comfortable long sleeve that manages moisture well and allows freedom of movement. It is perfect for work or casual wear in mild to cool weather.