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Men's Long Johns

Keep cosy on colder days with the addition of men's long johns, which can be worn under any trousers to add a layer of insulation. Long johns are designed to maintain heat and offer thermal protection, making them an ideal base layer in the winter.

They are often popular with those who have to spend long hours outside or work in cold environments as it prevents the wearer from getting cold. Invest in a pair if you have any outdoor hobbies such as fishing or work in construction.

Long johns come in a snug fit and taper in at the ankles to prevent any cold sneaking in under your clothing, as well as for added comfort and to prevent them from flaring out from under your regular trousers. Although offering insulation, they are lightweight, giving freedom of movement, perfect for layering. They begin at the waist and sit just above the ankle so that they can be easily concealed and tucked into socks and boots.

Choose a ribbed material for a personalised fit that contours to your body's natural shape. A touch of elastane in the material adds a comfortable stretch to offer a closer fit. Tighter fitting long johns prevent any cool air getting in between the material and the skin, making them extra warm.


Cotton is a great everyday choice in fabrics, as it is made from natural fibres and is soft against the skin. Not only is cotton a great insulator, it also wicks moisture from the skin keeping you comfortable. If choosing a synthetic material , avoid pure polyester as it allows odours to breed.

Choose a cotton and polyester blend to benefit from the advantages of both materials. The cotton and polyester blend can be more durable and long-wearing than single fabrics. Cotton polyester blends are usually the most common in long johns, although wool is often very popular.

For extra cold days, choose wool as its natural characteristics include low heat conductivity that keeps you warm and is durable. Silk also has low heat conductivity so is great for winter wear.

Thermal technology

A lot of modern men's long johns have specialised heat holding technology to retain warmth and give targeted insulation to keep you warmer on colder days. They often add breathability, odour control and quick drying qualities for added comfort.

Some even have a tog rating to keep warm air close to the skin, bringing added warmth for longer. Choose a pair with a soft brushed lining for a soft feel against the skin to keep you cosy.

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