10 Best Thermal Shirt 2025 in the United States

The Under Armour Men's Armour HeatGear Compression Long-Sleeve T-Shirt is designed for active individuals looking for high-performance wear. The material is a blend of 84% Polyester and 16% Elastane, which makes it lightweight and stretchy. This shirt excels in moisture-wicking, meaning it effectively pulls sweat away from your skin and dries quickly, keeping you comfortable during intense activities.

Additionally, the mesh underarm and back panels provide excellent ventilation, preventing overheating. The ergonomic design ensures that seams are placed in low-abrasion areas, which enhances durability and comfort. The hybrid raglan sleeves offer a full range of motion, making this shirt suitable for activities that require flexibility. With its ultra-tight, second-skin fit, it offers a compression feel that supports muscles and improves blood flow.

The UPF 30 rating is a nice bonus, offering some protection against harmful sun rays. This shirt is machine washable, which adds to its convenience. Anyone engaged in sports or intense physical activities would benefit the most from this thermal shirt.

The Under Armour Men's ColdGear Armour Fitted Mock thermal shirt is designed to keep you warm and comfortable during cold weather activities. Made from dual-layer fabric, it features a brushed interior that is ultra-warm and a smooth, fast-drying exterior. The material is 100% knit, which helps in efficient moisture-wicking and ensures that the shirt dries quickly, reducing the discomfort of sweat.

The stretch-mesh back and underarm panels offer strategic ventilation, maintaining warmth without causing overheating. Its 4-way stretch construction allows for better movement in all directions, making it suitable for active use. The fitted design is streamlined, neither too tight nor too loose, providing a comfortable fit for various body types.

Additionally, the mock neck construction adds extra coverage and warmth, while the dropped, shaped hem offers additional coverage and a stylish look. The seams are ergonomically designed to stay off high abrasion areas, which enhances durability and comfort. However, the thermal shirt lacks specific odor resistance features, which might be a concern for users engaging in high-intensity activities. Despite this, its machine-washable nature and effective moisture-wicking properties make it a practical choice for those looking for a reliable and comfortable thermal shirt for cold weather. Suitable for outdoor enthusiasts and athletes who need a balance of warmth, comfort, and mobility.

The TELALEO 5 Pack Men's Thermal Compression Shirts are designed as a warm base layer with fleece-lined fabric that helps trap heat during cold weather. Made from 85% polyester and 15% spandex, the material offers a stretchy, snug fit typical of compression wear, which can enhance comfort and mobility for sports or outdoor activities. The turtle neck design adds extra coverage around the neck, beneficial on chilly days. One of the strengths is its moisture-wicking ability, which quickly evaporates sweat to keep you dry and comfortable, an important feature if you’re active in winter.

The shirts are also easy to care for with machine washable fabric, though it's best to avoid bleach and ironing to maintain the garment's quality. The lightweight feel and stretchiness make it versatile for layering under jackets or wearing alone during workouts like running, cycling, or skating. However, because it’s a compression fit, it may feel tight if you prefer looser clothing.

These shirts are well suited for men seeking affordable, warm, and moisture-managing base layers for winter sports or everyday cold weather wear.