Sizes: l / m / s / xl / xs / xxl
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Designed with a medium warmth level, these long johns provide a regular fit for cooler days, making them perfect for layering as base layer underwear. The insulating brushed-back fabric ensures breathability for lasting comfort, while Heatgen™ technology helps generate and retain body heat.
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 policyDesigned with a medium warmth level, these long johns provide a regular fit for cooler days, making them perfect for layering as base layer underwear. The insulating brushed-back fabric ensures breathability for lasting comfort, while Heatgen™ technology helps generate and retain body heat.
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 White is ideal for casual, weekend.
Layer these thermal long johns under your jeans for a cozy winter look.
The M&S Heatgen Medium Thermal Long Johns in White is available in sizes l, m, s, xl, xs, xxl.
Second-hand alternatives to the M&S Heatgen Medium Thermal Long Johns in White on Vinted, Depop and other UK resellers.
