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The warmth lasts all day — I stuck one on at 7am and it was still going when I got home. Having 40 in a pack means I'm set for the whole winter.

lisa G.
 4.9 | Over 10,000 reviews.

CoreHeat - Adhesive Body Warmers

CoreHeat - Adhesive Body Warmers

Discover convenient, wearable warmth with 40 adhesive heat patches. Up to 18 hours of steady heat that moves with you, wherever you need it.

verified 40 individually wrapped patches — air-activated, no charging, no cables.

verified Up to 18 hours of steady warmth plus free thermal socks with every order.

verified Thin enough to wear under any layer — nobody knows it's there but you.

 
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How do CoreHeat patches actually work?

CoreHeat patches are air-activated. Once you open the individual wrapper, the ingredients inside react naturally with oxygen and begin producing gentle warmth. Simply remove the backing and stick the patch to the inside of your clothing over the area you want to keep warm. No batteries, charging or cables needed.

How warm do they get?

CoreHeat is designed to provide comfortable, steady background warmth, rather than an intense or burning heat. It may take a few minutes to warm up after opening. This makes it better suited to keeping you comfortable through cold days than providing intense heat for muscle pain.

How long does the warmth last?

Each CoreHeat patch can provide warmth for up to 18 hours, depending on conditions and use. They’re individually wrapped, so you can take only the patches you need and leave the rest sealed for another day.

Where should I put the patch?

Apply CoreHeat to the inside of your clothing — not directly onto your skin. Position it over areas where you’d like extra warmth, such as your lower back, stomach, chest or shoulders. The adhesive helps keep it securely in place while you’re moving around.

What if I don’t need it anymore?

Simply peel the patch off your clothing and dispose of it. There’s nothing to switch off, recharge or store after use. Each patch is designed for single use.

What Our Customers Are Saying

  • Perfect for freezing football mornings

    I used to dread standing on the sidelines for two hours in winter. CoreHeat gives me a steady, comfortable warmth without feeling bulky under my coat. I just stick one inside my clothing before we leave and forget it’s there

    Sarah M.

  • Makes outdoor work much more comfortable

    I’m outside for most of the working day and wanted something simple without batteries or cables. These warm up gradually and give me the background warmth I was looking for. They stay put on my clothing really well too

    James T.

  • I always keep a couple in my bag now

    I wasn’t sure how effective such a thin patch would be, but I was pleasantly surprised. It’s not an intense burning heat — just comfortable warmth that keeps going. The individual wrappers make them really handy to take anywhere

    Emma R.

    Discover 40 Patches of All-Day Warmth

    CoreHeat gives you 40 individually wrapped, air-activated adhesive body warmers. Each patch delivers up to 10 hours of steady, comfortable warmth that sticks to your clothing and moves with you. No charging, no cables, no fuss — just peel, stick, and go.

    Real people, real results.

    Feedback from customers using CoreHeat through autumn and winter.

    94%

    said the patches kept them comfortably warm for the full day.

    91%

    said they discovered uses they hadn't thought of — sidelines, commutes, dog walks, gardening.

    96%

    said the thin, discreet design made them easy to wear under any layer without noticing.

    Customer Reviews

    • Keeps me comfortable on the sidelines

      “I’m out watching my son play football most weekends, and standing around in the cold was always the worst part. I stick a CoreHeat patch inside my clothing before we leave and the steady warmth makes a huge difference.”

      Michael Schneider

    • Brilliant for working outside

      “I’m a gardener, so there’s no escaping the cold in winter. These are thin enough that I barely notice I’m wearing one, they stay where I put them, and the warmth lasts through a good part of my working day.”

      Sabine Keller

    • Much easier than carrying a heat pack

      “I wanted something I could keep in my work bag without charging or preparing anything. I open one, stick it inside my clothing and give it a few minutes to warm up. Really straightforward and surprisingly comfortable.”

      Thomas Wagner