Best Thermal Tops for Men of 2026

The Heatwave Thermal Long Sleeves are a pack of two men's thermal tops designed to keep you warm. With a 0.45 TOG rating, they effectively trap warm air close to your skin, ideal for chilly days. Made from 60% cotton and 40% polyester, these tops offer a comfortable fit that conforms to your body’s shape. Available in various colours like white, blue, and black, they provide stylish options to suit your wardrobe while ensuring you stay cosy.

The BENNIES Thermal Underwear offers excellent warmth, thanks to its high-quality insulating materials that effectively retain body heat. You will appreciate the comfort of this close-fitting clothing, designed to be gentle on your skin without any restriction. Additionally, its good breathability ensures that sweat is quickly absorbed and released, keeping you dry throughout the day. The appropriate elasticity allows the thermal underwear to fit your body perfectly, providing support and flexibility for any activities you engage in.

The Heatwave Thermal T Shirts are an ideal choice for keeping warm during colder months. With a 0.45 TOG rating, they effectively trap warm air close to your skin, ensuring you stay cosy. The comfort fit features a ribbed construction that shapes to your body's contours, providing a snug and comfortable feel. Available in a range of colours, including white, blue, charcoal, and black, these thermal tops are perfect for layering under your clothes.

The Mountain Warehouse Talus Baselayer is designed to keep you warm without the bulk, thanks to its Isotherm technology which uses densely packed fibres to retain heat. It actively wicks moisture away from your skin, helping you stay dry and comfortable during physical activities. The fabric dries quickly, making it ideal for travel or frequent washing while on holiday. Additionally, the top is lightweight, so it’s easy to pack and comfortable to wear all day, whether you're outdoors or indoors.

The Meribel Men's Thermal Top by Mountain Warehouse is crafted from 100% cotton, making it lightweight and breathable, perfect for everyday wear. You will appreciate how comfortable it feels against your skin, and its packable nature means it’s an excellent choice for travel. This top also dries quickly, which is ideal if you wash it on holiday or during active outings. Its lightweight design enhances your comfort, making it suitable for various activities.

The Fruit of the Loom Thermal Top offers a soft mini waffle fabric that keeps you warm in cold to moderately cold conditions. Its U.S. sourced cotton and recycled polyester provide insulation while wicking away moisture to ensure comfort throughout the day. You will appreciate how quickly it dries, thanks to the super soft fabric. Additionally, the reinforced flat seam construction adds to its durability, making it a reliable choice for your thermal needs.

The Gaffer Thermal Long Sleeve Tops are designed for warmth and comfort during chilly winter activities. With a TOG rating that helps trap warm air close to your body, these thermals provide effective insulation. The comfort fit features a ribbed construction, ensuring they contour perfectly to your shape, which enhances mobility. Made from advanced insulating yarn, the soft brushed inner layer offers high-performance insulation, making these tops ideal for skiing or lounging at home.

The HEAT HOLDERS Thermal Top is designed with a long body length, making it easy for you to tuck it under your clothes. With a tog rating of 0.45, this top provides excellent warmth, keeping you comfortable during colder days. It is perfect for layering, ensuring you can wear it beneath your regular attire without bulk. The thermal lining retains heat close to your skin, allowing you to stay warm for longer periods. Available in Charcoal and White, it seamlessly fits into your wardrobe.