Best Long Johns Thermal Sets for Men of 2025

The Heatwave Thermal Underwear offers a pack of two extreme thermal sets, including a long sleeve top and long johns. With a TOG rating of 0.45, these thermals effectively trap warm air close to your skin, ensuring you stay cosy during the colder months. Made from a comfortable blend of 50% cotton and 50% polyester, they provide a soft feel against your skin. The ribbed construction is designed to contour to your body, offering a perfect fit that enhances comfort throughout the day.

Gaffer Thermal Set is a premium quality product designed for comfort and style. Made from a poly cotton blend, it ensures durability and a soft feel against your skin. The brushed cotton inside adds an extra layer of warmth, making it perfect for chilly days. Plus, it is machine washable, allowing you to keep it fresh and clean with ease. Whether you're skiing, camping, or simply enjoying outdoor work, this thermal set is a reliable choice for your winter wardrobe.

The ZRWASKA Thermal Set offers a comfortable and warm solution for winter wear. Available in various sizes and colours, it ensures a perfect fit for everyone. Made from a blend of cotton and polyester, this thermal underwear holds warmth close to your skin while wicking away moisture, helping you stay dry and comfortable. The full set includes a long-sleeve top and long johns, making it ideal as a base layer for outdoor activities or as cosy loungewear at home.

The MEETWEE Thermal Underwear Set is designed to keep you warm and comfortable during colder months. Made from a blend of bamboo charcoal fabric, it promotes blood circulation and improves muscle performance, providing a warmer effect by reflecting your body heat. The lightweight, skin-friendly material features a seamless design that fits like a second skin, ensuring comfort throughout the day. Additionally, the fast-drying fabric absorbs sweat and neutralises odours, making it ideal for outdoor activities while keeping you cool and dry.

The DANISH ENDURANCE Thermal Underwear offers exceptional insulation, making it perfect for cold weather activities like skiing and hiking. Made from high-quality recycled materials, the fabric is soft and stretchy, ensuring comfort for sensitive skin. Its unisex fit allows for versatility, though women may wish to size down. Additionally, the moisture-wicking properties keep you dry, enhancing your experience during outdoor adventures.

The Roadbox Thermal Underwear offers exceptional warmth through its dual heating fibre materials, which trap body heat effectively. This ensures you stay cosy even in the coldest conditions. Made from a new type of acrylic fibre, it provides a soft touch and snug fit, making it ideal for layering. Additionally, its moisture-wicking properties keep you dry by absorbing excess moisture and converting it into heat, enhancing your comfort during winter activities. The skin-friendly fleece adds an extra layer of warmth while maintaining a lightweight feel.

The SIMIYA Thermal Underwear Set is designed to keep you warm and comfortable during winter activities. Lined with thick, soft fleece, it effectively traps body heat while blocking out the cold. The moisture-wicking fabric ensures you stay dry throughout the day, making it suitable for both lounging and outdoor sports. Its stylish stand collar and half-zipper design offer adjustable comfort and make it easy to wear. This set is perfect for any winter adventure, ensuring you look great while staying cosy.

The BENNIES Thermal Underwear offers exceptional warmth, thanks to its high-quality insulating materials that effectively store body heat, ensuring you stay cosy during cold weather. You'll appreciate the comfort of this close-fitting clothing, which is designed to feel gentle against your skin without any restriction. Additionally, the good breathability of the thermals helps absorb sweat and keeps you dry, making it ideal for various activities. The appropriate elasticity ensures a perfect fit, allowing you to move freely while enjoying your outdoor adventures.

The Thread Linens Thermal Set is designed for maximum comfort and functionality. Made from premium fabric, it features smart odour control to keep you fresh, whether you're indoors or outdoors. The fitted design allows for easy movement, ensuring you stay flexible during any activity. With a lightweight composition that incorporates both cotton and polyester, this thermal underwear provides warmth without bulk, making it easy to layer under your clothes. Enjoy the comfort of an elastic waistband that fits snugly without restriction.

The UNIQUEBELLA Thermal Set is designed to keep you warm during cold autumn and winter days with its high-quality fleece lining, ensuring effective heat preservation. Its breathable and quick-drying fabric wicks away sweat, keeping you dry and comfortable while also repelling unpleasant odours. The stretchable and abrasion-resistant material offers freedom of movement, which is ideal for training and sports. With a snug fit, this thermal set includes a long sleeve top and thermal johns that maintain their shape, making it perfect for various activities.