Sizes: l / m / s / xl / xxl
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Crafted with medium warmth, these grey long johns offer a regular fit, ideal for cooler days as a base layer. The brushed-back fabric ensures breathability for lasting comfort, while Heatgen™ technology helps generate and retain body heat when temperatures drop.
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 policyCrafted with medium warmth, these grey long johns offer a regular fit, ideal for cooler days as a base layer. The brushed-back fabric ensures breathability for lasting comfort, while Heatgen™ technology helps generate and retain body heat when temperatures drop.
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 policyLooking for similar styles? Browse more underwear from Marks & Spencer, casual underwear, all underwear, or everything from Marks & Spencer.
The M&S Heatgen™ Medium Thermal Long Johns in Grey is ideal for casual, smart-casual.
Perfect for layering under your jeans or trousers during colder months.
The M&S Heatgen™ Medium Thermal Long Johns in Grey is available in sizes l, m, s, xl, xxl.
Second-hand alternatives to the M&S Heatgen™ Medium Thermal Long Johns in Grey on Vinted, Depop and other UK resellers.
