Best Sports Thermal Bottoms for Men of 2026

The HIPOWER Thermal Long Johns are designed to keep you warm during the chilly winter months. Made from ultra-soft micro-fleece fabric, they fit snugly to minimise heat loss while remaining lightweight. The advanced 4-way stretch allows for excellent comfort and movement, making them perfect for activities like running or yoga. Additionally, their moisture-wicking properties ensure you stay dry by quickly drawing sweat away from your skin, providing you with a sense of security in cold weather.

The Heatwave Thermal Trousers are an essential addition to your winter wardrobe. This pack of two offers a 0.45 TOG rating, ensuring you stay warm by trapping more air close to your skin. The comfort fit, with its ribbed construction, shapes perfectly to your body contours, providing both warmth and comfort. Available in multiple colours, these thermal trousers are ideal as a baselayer, making them versatile for various outdoor activities or lounging at home.

The Heat Stoke Thermal Long Johns are designed to keep you warm during the cold winter months. With a TOG rating of 0.45, these long johns effectively trap body heat, ensuring you stay comfortable. The brushed inside technology enhances cold resistance, providing extra warmth. Additionally, the ribbed construction fits your body perfectly, while the open fly design adds convenience. Made from a blend of 50% cotton and 50% polyester, these long johns are both soft and durable, making them an excellent choice for chilly days.