Best Long Sleeve Base Layers for Men of 2025

Stay protected from the cold with Thermajohn Men's Thermal Shirts. These ultra soft fleece shirts are designed to provide heat retention and keep you warm throughout the day. Made with moisture-wicking fabric, these shirts effectively wick away moisture and perspiration, keeping you dry and comfortable. The 4-way stretch material allows for freedom of movement without chafing or bunching up. Whether you're outside or in bed, layer up with these thermal shirts to stay comfortable this winter. Bundle up and enjoy the convenience and benefits of these Thermajohn Men's Thermal Shirts.

The 32 Degrees Baselayer Top is designed for comfort and warmth. Made from a lightweight knit blend of polyester, acrylic, rayon, and spandex, it offers excellent stretch, making it perfect for layering under your clothes. The acrylic adds extra warmth while remaining soft against your skin. Caring for this top is easy, as it can be machine washed on a gentle cycle and tumble dried, ensuring convenience for your busy lifestyle. With a fitted style, it hugs your body for a streamlined look, ideal for outdoor activities or casual wear.

The 32 Degrees Baselayer Top is designed for comfort and performance. Its fitted style and 28.5-inch body length ensure a snug fit that moves with you, making it ideal for layering during outdoor activities. The moisture-wicking fabric helps keep you dry by drawing sweat away from your skin, while the anti-odor technology keeps you feeling fresh throughout the day. Additionally, the 4-way stretch material allows for unrestricted movement, so you can enjoy your activities without feeling constricted. This top is perfect for anyone seeking lightweight warmth and flexibility.

Dalavch Thermal Shirts offer excellent features to keep you warm and comfortable during cold weather. The innovative heat retention technology and soft fleece lining ensure you stay cozy, making them great for outdoor activities like running or hunting. They also feature moisture-wicking fabric that quickly draws sweat away, helping you feel fresh throughout your workouts or soccer games. With a four-way stretch design, these shirts provide a snug fit while allowing you to move freely, perfect for sports or active outings. Enjoy the ultimate comfort and performance with these versatile base layers.

The TELALEO Thermal Base Layer is designed to keep you warm and comfortable during cold weather. Made from a blend of polyester and spandex, this shirt provides a snug fit that locks in heat. The fleece-lined material adds an extra layer of warmth, making it perfect for winter activities. You’ll appreciate the quick-drying fabric that wicks away moisture, ensuring you stay dry and comfortable. Whether you’re cycling, running, or engaging in other outdoor activities, this versatile shirt is an excellent choice for staying active in chilly conditions.

The ATHLIO Thermal Compression Shirt is designed to keep you warm during your winter workouts. With its soft fleece lining, it traps heat to ensure you stay comfortable in cold weather. The blend of polyester and spandex provides excellent stretch and durability, allowing for a full range of motion in activities like running, yoga, and sports. Additionally, it offers impressive sun protection, blocking over 99% of harmful UV rays, so you can enjoy outdoor activities without worry. Remember to wash it separately before wearing for the best experience.

Stay comfortable all day with Merino.tech Base Layer. Made of 100% Superfine 18.5 Micron Merino Wool, this midweight base layer is available in three options: Lightweight, Midweight, and Heavyweight. Its natural moisture-wicking properties keep you dry and fresh, while its soft and comfortable texture prevents rubbing, overheating, or bunching. You can easily care for it by washing it in the washer/dryer or hand wash and lay flat to air dry. With a lifetime warranty, you can trust that this base layer will perform to your satisfaction.

The MAGCOMSEN Thermal Shirt is designed for your comfort and warmth, featuring a soft fleece lining that keeps you cozy during chilly days. Its moisture-wicking fabric effectively absorbs sweat, ensuring you stay dry and comfortable throughout your activities. With a four-way stretch design, this shirt allows you the freedom to move easily, whether you're bending, jumping, or running. Additionally, its versatility makes it perfect as a base layer under jackets or as a comfy pajama option for winter nights, making it a great choice for various occasions.

The 32 Degrees Baselayer Shirt is designed for comfort and performance. Its lightweight material ensures you stay dry by wicking away moisture, making it ideal for activities like running or skiing. The anti-static and anti-odor features help keep you fresh, even during intense workouts. Plus, the four-way stretch fabric allows for easy movement, ensuring you can perform at your best without feeling restricted. This fitted shirt is perfect for layering under other clothing, making it a versatile addition to your wardrobe.

The 32 Degrees Baselayer Top is designed for comfort and performance. With its fitted style and mock neck, it provides a sleek look while keeping you warm. The moisture-wicking feature helps keep you dry by drawing sweat away from your skin, making it perfect for active use. Its anti-odor properties ensure you stay fresh during long wear, ideal for workouts or outdoor activities. Additionally, the 4-way stretch fabric allows for unrestricted movement, so you can stay comfortable no matter how you move.