M&S Collection

2 Pack Heatgen™ Long Johns



No image available for this product.
Double tap to zoom
    View catwalk Rollover to zoom
    Free delivery to your nearest store
    Delivery within 3-4 business days
    View all offers
    Colour selected:


      Hurry, only 0 left in stock!

      You've reached your quantity limit for this item.

      We only list UK sizes. If you're not sure what your UK size is, please click on 'What's my size?' or review our size guides.

      Added to bag

      M&S says

      An essential purchase for cooler weather, this two pack of thermal pants is packed full of practical features to keep you comfortable. These men’s thermal pants are made with an insulating material to retain body heat and feature a clever anti-bacterial and moisture wicking finish that will keep you feeling fresh all day long.

      • Product Details


        • Product Style: Long johns
        • Regular fit
        • Added stretch, Anti-bacterial finish helps to control odour causing bacteria

        Care and Composition

        • 67% acrylic, 28% cotton and 5% elastane,(exclusive of trimmings)
        • Machine washable
        • Tumble dry
      • Returns & Refunds

        35 days to return

        You may return unused products within 35 days of purchase with a valid parcel summary document. Your items don't need to be in the original box or bag as long as they're securely packaged.

        How to return

        Free returns to select M&S stores.
        Hassle-free returns from home. Simply print the returns label, attach it to the top of your parcel and insert the returns note in the parcel. We will automatically deduct the cost of return from your refund.
        To print the returns label and return, simply click here.

        Tell me more about how to return items and the returns policy
      • Delivery Options

        Free delivery to your nearest store: within 3-4 working days
        Standard Delivery: FREE over £50 (normally £3.50); within 3-4 working days.

      • Offers
        * Free delivery to your nearest store: Delivery within 3-4 business days
      2 Pack Heatgen™ Long Johns is rated 4.4 out of 5 by 69.
      Rated 5 out of 5 by from Warm and Comfortable I have bought these in black and in blue for my teenage son. The blue is actually quite pale but a nicer shade to the grey. These actually come as a 2 pack although this isn't made clear in the description. Which makes it better value for money. I used to buy the kids version which M&S haven't done the last couple years which is a pity as they were really good for kids. Luckily my son can now fit into the men's sizes. They are warm and comfortable, and as with all heatgen products are gentle to the skin and doesn't cause any skin irritation or dryness as other thermal products do.
      Date published: 2016-08-26
      Rated 1 out of 5 by from Nope - too small and fabric not like heatgen Far too small and tight even though we sized up to XL for a normally 38 waist trouser wearer. Cuts off the circulation and gave back ache and leg cramps. Material is not like the women's heatgen which is why I recommended these to him as those being warm to dress straight into, and soft. These are not soft. The fabric mix has cotton, maybe that makes it stiff, women's version has no cotton and is it stiff and more stretchy. As its underwear any refund doubtful, so value for money will be zero. The description says made from our soft Heatgen fabric, but it isn't, so disappointed.
      Date published: 2017-11-22
      Rated 5 out of 5 by from Exactly what I wanted Keeping my golf-playing husband warm. Not too thick but very cosy.
      Date published: 2017-03-02
      Rated 5 out of 5 by from Thermal long johns These are good quality and keep you warm.
      Date published: 2017-03-03
      Rated 5 out of 5 by from Winter warmers These offer warmth without bulk - great base layer - wash well and dry quickly - ideal for the colder weather where you need to be warm without feeling restricted with too many clothes
      Date published: 2017-10-27
      Rated 2 out of 5 by from nearly saggy thermals Fabric too soft and stretchy so leg length for Medium is too long for a 32/33 inch inside length and under even straight not slim cut jeans the material "fights" with the trousers both dragging on each other. Bit uncomfortable as a result whereas the ones I bought a couple of years ago which were more like a very-very heavy pair of tights were much better.
      Date published: 2017-11-30
      Rated 4 out of 5 by from Long Johns Good buy - would be nice if the leg length could be offered in different sizes i.e., my Husband if 5'7" and has an inside leg of 29" these appear to be more like 31" length plus.
      Date published: 2017-11-27
      Rated 1 out of 5 by from Misleading product name DO NOT do what they say they do i.e. keep you warmer. Just as well it's a two pack, you need to wear both!
      Date published: 2016-12-09
      • y_2019, m_1, d_20, h_21
      • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
      • cp_1, bvpage1
      • co_hasreviews, tv_0, tr_69
      • loc_en_GB, sid_P22468811, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
      • clientName_marksandspencer-flagship
      • bvseo_sdk, dw_cartridge, 16.1.1, p_sdk_3.2.0
      • CLOUD, getContent, 174ms
      • reviews, product