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Description
This Heat Holders set of thermal underwear is the perfect set for layering as of its easily fitting design for under your clothes for a smooth slim fitting thermal base layer for the colder days where one layer isn't enough!
This thermal underwear set has a TOG rating of 0.39 adding that crucial extra layer of warmth. The higher the TOG the better the garment will keep you warm. They also have Heat Holders Thermal construction which holds more warm air close to the skin keeping you warmer for longer.
The thermal underwear set includes a long sleeve thermal top, pair of long johns and comes in 2 colours: Charcoal or White. Available in 4 size options: Medium, Large, X-Large & XX-Large. They are made from: 53% Polyester, 47% Cotton and they are Machine Washable.
Extra Product Details
Heat Holders Men's Thermal Underwear Set
Long Sleeve Top & Long Johns
Smooth & Slim Fitting
Thermal TOG Rating: 0.39
Soft & Seamless Body
Available In Charcoal Or White
Heat Holders Thermal Construction
Hardly Noticeable Under Your Clothing
Perfect For Winter
4 Size Options: M, L, XL & XXL
Machine Washable
Shipping & Delivery
Shipping & Delivery
Delivery is free on all UK orders over £50.
For UK orders under £50, and for international destinations, delivery costs are calculated at checkout before payment.
Standard tracked shipping usually takes 7–12 days unless a product page or checkout shows a different estimate.
You will receive tracking details by email as soon as your order has been dispatched.
Returns & Exchanges
We want you to be fully satisfied with your B&G purchase. If something doesn't feel right, you can request a return.
Return period
You can request a return within 30 days from the date you receive your order, as long as the items are unused, unwashed and with all original tags attached.
How to request a return
Send us an email at support@blegant.com with your order number and the items you wish to return. We'll reply with further instructions and the return address.
Conditions
- Items must be in original condition: unworn, unwashed and free of stains, odours or damage.
- For hygiene reasons, underwear and socks cannot be returned unless faulty.
Refunds
Once your return is received and inspected, we'll process your refund to the original payment method. Depending on your bank or payment provider, it may take a few working days for the refund to appear in your account.
Size guide

Find your best fit with the B&G size guide. Measurements can vary slightly by brand, so always check the size selector on each product page before ordering.
Women's clothing: UK 6 = XS, UK 8 = S, UK 10 = S/M, UK 12 = M, UK 14 = L, UK 16 = XL, UK 18 = XXL.
Men's clothing: S = 36-38 in chest, M = 38-40 in, L = 40-42 in, XL = 42-44 in, XXL = 44-46 in.
Footwear: use your usual UK size. If you are between sizes, check the product notes and choose the larger size for boots or trainers.
Fit tips: for fitted styles, choose your usual size. For a relaxed everyday look, size up. If you need help before ordering, email support@blegant.com and we'll be happy to help.