Shop this Heatgen™ Maximum Thermal Long Johns at Marks & Spencer. Browse more styles at Marks & Spencer Kyrgyzstan
When the temperature drops, beat the chill in our thermal long johns. Regular fit with an elasticated waist and cuffed bottoms for snug and secure wear. Functional keyhole fly opening. Our clever Heatgen™ technology uses an innovative fibre blend, helping your body to generate and retain heat so you can stay warm when the weather gets chilly. Brushback texture feels gentle against your skin, while supersoft seams ensure there's no chafing.
When the temperature drops, our ultra-lightweight thermal long johns add a cosy extra layer. Regular fit, with supersoft seams, heatsealed care labels
2pk Heatgen™ Light Thermal Long Johns, M&S Collection
![](https://assets.ajio.com/medias/sys_master/root/20221125/NX0X/637fe08faeb269659cb3b584/-473Wx593H-465339178-navy-MODEL3.jpg)
Buy Navy Blue & Black Socks for Men by Marks & Spencer Online
![](https://images.fashiola.com/product-list/300x450/marksandspencer/550880719/heatgen-medium-thermal-long-johns.webp)
Marks & Spencer Underwear - Men
When the temperature drops, beat the chill in our thermal long johns. Regular fit with an elasticated waist and cuffed bottoms for snug and secure
Heatgen™ Maximum Thermal Long Johns, M&S Collection
![](https://ik.imagekit.io/sqhmihmlh/https:/asset1.cxnmarksandspencer.com/is/image/mands/SD_02_T32_9200M_VP_X_EC_0?%24PDP_MAXI_ZOOM%24%3F%24PDP_MAXI_ZOOM%24=&ik-sdk-version=javascript-1.3.6&tr=c-limit%2Cw-500%2Ch-%2Cdefault+image-https%3A%2F%2Fik.imagekit.io%2Fsqhmihmlh%2Fmissing_image.jpg)
M&S Womens Heatgen™ Medium Thermal Long Sleeve Top - 8 - Charcoal
![](https://images.fashiola.com/product-list/300x450/marksandspencer/550761740/2pk-heatgen-light-thermal-long-johns.webp)
Marks & Spencer Underwear - Men
![](https://img.shopstyle-cdn.com/sim/8c/f4/8cf4e925290997ad9043dd2c90aa9385_best/cool-cotton-long-boxer-briefs.jpg)
Mens Long Johns Underwear
![](https://images.fashiola.co.uk/product-list/300x450/marks-and-spencer/774813302/mens-heatgen-medium-thermal-long-johns-berry.webp)
Buy Skiwear: Snowsuits & Thermals - Men
![](https://img.shopstyle-cdn.com/sim/7d/0d/7d0d96ac11d9b8b034da6c28ce9adab8_best/stanfields-mens-micro-fleece-thermal-long-johns-underwear.jpg)
Mens Thermal Underwear
![](https://img.shopstyle-cdn.com/sim/33/97/33974c5e7b44ed2df58203127612878b_best/heatgentm-maximum-thermal-long-johns.jpg)
M&S Collection Heatgen™ Maximum Thermal Long Johns - ShopStyle Briefs
![](https://rukminim2.flixcart.com/image/850/1000/xif0q/legging/x/t/8/4xl-t327202mcharcoal-marks-spencer-original-imagpuzvmdfhdkze.jpeg?q=20)
![](https://m.media-amazon.com/images/I/71YjV76dhnL._AC_UY1000_.jpg)
![](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/713z5T+mR5L._AC_SL1500_.jpg)
![](https://i.ebayimg.com/images/g/aHAAAOSwPlZfkIKm/s-l1600.jpg)