

Sizes: 2xl / l / m / s / xl
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This is a pair of thermal long johns crafted from brushed cotton for medium warmth. Designed for a regular fit, they provide a snug and comfortable feel, perfect for cooler days. The brushed-back fabric ensures breathability, while the comfort seams add to the overall snugness. Ideal for layering under other clothing, these long johns are a great base layer for chilly weather. Wear them under your favourite jeans or trousers for an extra layer of warmth. Brushed cotton, machine wash cold.
Marks & Spencer — £3.99 standard delivery, free over £60.00 via Standard, typically 2-4 working days.
Marks & Spencer offers free returns within 28 days. Post back via the retailer's chosen courier (free), or in-store where available.
View Marks & Spencer's returns policyThis is a pair of thermal long johns crafted from brushed cotton for medium warmth. Designed for a regular fit, they provide a snug and comfortable feel, perfect for cooler days. The brushed-back fabric ensures breathability, while the comfort seams add to the overall snugness. Ideal for layering under other clothing, these long johns are a great base layer for chilly weather. Wear them under your favourite jeans or trousers for an extra layer of warmth. Brushed cotton, machine wash cold.
Marks & Spencer — £3.99 standard delivery, free over £60.00 via Standard, typically 2-4 working days.
Marks & Spencer offers free returns within 28 days. Post back via the retailer's chosen courier (free), or in-store where available.
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The M&S Grey Thermal Long Johns for Men is ideal for casual, everyday.
Wear these thermal long johns under your jeans or trousers for an extra layer of warmth on cooler days.
The M&S Grey Thermal Long Johns for Men is made from cotton.
The M&S Grey Thermal Long Johns for Men is available in sizes 2xl, l, m, s, xl.
Editor's edit
Wear these thermal long johns under your jeans or trousers for an extra layer of warmth on cooler days.
See all outfit ideasSecond-hand alternatives to the M&S Grey Thermal Long Johns on Vinted, Depop and other UK resellers.