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Best microwave heat packs for legs, knee and calf pain relief (UK) - Buying Guide: 2024

Microwavable heating pads are a great solution for legs, knee and calf pain relief. This product is heated inside the microwave or in the oven for a few minutes to enjoy the properties of heat therapy.

They are filled with seeds and lavender flowers and are ideal for aromatherapy before bedtime. If you want to know a little more about these pillows for legs, knee and calf pain, read the following article.

What is the best microwavable heating pads for leg and knee?

Feel Recovery - Microwaveable Wheat Bag for Pain Relief
  • Size: One Size Fits All
  • Colours: Oxford, Hearts and Sport
  • Material: Breathable
  • Nº of products: 1 Piece
  • Uses: Rehabilitation and sport
  • 100% Cotton
  • Various Colours
  • Flax Seeds
  • Lavender Flowers
  • Heat up in 2 min

Feel Recovery - Microwaveable Wheat Bag for Pain Relief

Flax Seeds

Feel Recovery - Microwaveable Wheat Bag for Pain Relief

Lavender Flowers

Feel Recovery - Microwaveable Wheat Bag for Pain Relief

Various Colours

My Heating Pad - Microwavable Heat Pack with Adjustable Waist Wrap to relieve lower back pain
  • Size: 53.3 x 11.4 x 2.5cm
  • Colours: Purple
  • Material: Cloth
  • Filling: Flax seed, Rice
  • Uses: Back, Abdomen
  • Fully adjustable velcro strap
  • Long lasting heat therapy
  • Microwave safe
  • Natural filling ingredients
  • No fabric material specified
  • Delicate wash
The My Heating Pad microwave heating pad is suitable for relieving menstrual symptoms, warming the lower back and aiding digestion . This is due to the benefits of thermotherapy, which you can use directly through this heat wrap. Its materials and quality are designed to last for a long time and maintain a high effectiveness in stimulating blood circulation.

Its use is very simple, just heat the flax seeds and rice in the microwave to produce the desired therapeutic effect. In addition, you can use this thermal pillow as a cold therapy to stimulate vasodilatation and reduce inflammation in the lumbar region. Please note that the material is synthetic and can overheat, causing serious injury to the skin.

REVIX - Extra Large Microwave Heating Pack with Moist Heat for Waist, Stomach, Shoulder and Neck
  • Size: One size fits all
  • Colours: Grey
  • Material: Minky
  • Filling: Flaxseed, Millet, Clay beads
  • Uses: Waist, Shoulders, Collars
  • Long lasting heat pack
  • Heat-Cold Therapy
  • Microwaveable
  • Quality natural filling
  • Caution when heating
  • Gentle washing
You can't miss the opportunity to choose a REVIX heat wrap, which is suitable for use on the waist, shoulder and anywhere else on the body where you need to apply direct heat in a controlled way. Its design and length favour the stimulation of tissue oxygenation, reducing pain and inflammation caused by the accumulation of toxins.

It is suitable to be applied as cold therapy, as the unisex cereal seed bag can be perfectly adapted to the user's body. To achieve the desired temperature, it is necessary to place it in the microwave for one or two minutes or keep it in the refrigerator for more than two hours to cool it properly. Keep in mind that synthetic leather can be inefficient in transmitting heat.

Zhu Zhu - Microwavable Heat apck for Back Pain Relief with Belt Wrap
  • Size: 148 x 20cm
  • Colours: Blue
  • Material: Cloth
  • Filling: Wheat bag
  • Uses: Various body areas
  • Removable heating pad
  • Microwaveable
  • Fabric material not specified
The material of the Zhu Zhu thermal wrap and its type of fastening will help you to relieve sciatica pain and combat the symptoms of low back pain, caused by the strain of repetitive movements. You can also use this thermal pillow with Velcro to dilate the capillaries and give you a feeling of well-being. This will decrease stress and shorten recovery time from pulled muscles.

It is odourless, so it is suitable for people with allergies or who do not wish to complement the treatment with aromatherapy. It can be worn under clothing, as the wrap-around belt does not slip. Its filling is suitable to be cooled in the refrigerator to achieve the therapeutic benefits of cold therapy. It is important to keep in mind that the fabric material is not made of cotton, so it can cause irritation and burns.

SMUG - Extra large Wheat Bags Microwavable for Neck and Shoulder pain relief
  • Size: One size fits all
  • Colours: Leopard Print, Cow Print
  • Material: Cloth
  • Filling: Lavender scented wheat bag
  • Uses: Hands
  • Soft and comfortable
  • Heat-Cold Therapy
  • Microwaveable
  • Natural filling
  • No material specified
  • Wheat bag seams to be improved
Muscle and joint aches and pains will disappear faster using the SMUG microwavable wheat bag. Its design allows you to use it on the neck, shoulders and lower back to relieve pain and improve oxygenation of tissue fibres. As it is filled with wheat, it adapts easily to the person's anatomy, so all sensitive areas will receive the same support with controlled heat.

But that's not all, you can also cool the wheat bag in the refrigerator to treat sports conditions, arthritis and menstrual cramps. If you want to achieve a speedy recovery from any injury, don't hesitate to choose this pad filled with natural seeds. It is important to consider that the fabric is made of polyester and does not transmit temperature as efficiently as cotton does.

WheatyBags - Extra Large Microwave Heat Pack for back and lumbar pain relief
  • Size: 40 x 30cm
  • Colours: 6 Colours
  • Material: Cotton
  • Filling: Wheat bag
  • Uses: Various body areas
  • Heat-Cool Therapy
  • Microwave and freezer safe
  • Does not specify if it is 100% cotton
Don't miss the opportunity to have a WheatyBags microwavable wheat bag in the shape of a rectangle in your home. This heat pack is ideal for use on your back and wherever you need to reduce pain caused by pulled muscles, tendonitis and nerve irritation. You can take it anywhere with you because its size and weight are suitable for use at work or in the evenings.

It is made of several wheat-filled capsules, which can be cooled to get the benefits of cold therapy. Just place it in the refrigerator for more than 2 hours so that the cereal seeds can easily adapt to the affected area. As it is a cotton fabric, it transmits the temperature more efficiently and evaporates the humidity, avoiding irritations. It does not last as long as other thermal pillows.

WheatyBags - Microwave Wheat Bag with Classic Bottle Shaped Heat Pack with Fleece Fabric
  • Size: 35 x 22cm
  • Colours: 10 Models
  • Material: Fleece
  • Filling: Wheat Grains
  • Uses: Multipurpose
  • Choice of material and colour
  • Suitable for various body areas
  • Chemical free
  • Filled with natural wheat grains
  • Not machine washable
  • Weight not specified
Take the chill off your feet on winter nights with a WheatyBags wheat bottle. The structure of this seed bag makes it easy to use on any part of the body, for as long as appropriate. You can apply the thermotherapy to relieve pain from neck pain, arthritis, pulled muscles and tendonitis. And if you wish, use this microwavable heat pack on your knee to recover faster from patellar tendonitis.

It is designed to ensure your safety, although its fleece fabric can cause burns if you heat the product too much in the microwave. The heating pad is filled with unscented wheat, making it a great gift option for your friends. Don't miss this opportunity to choose a good health product.

Zhu-Zhu - Microwave Heating Pad with Classic Bottle Shaped for pain relief
  • Size: 30 x 21cm
  • Colours: Lilac, Pink, Purple
  • Material: Velvet
  • Filling: Wheat Grains and Lavender
  • Uses: Multipurpose
  • Various colours to choose from
  • Hot-cold therapy
  • Suitable for various body areas
  • Removable padding
  • No weight specification
  • Low heat transfer
Relaxation and pain relief will be quicker with a Zhu Zhu plush fabric body warmer. This heating pad is filled with wheat, which helps retain heat so you can use it for longer. In addition, its size and ergonomic design allows it to be used on the lower back, cervical area and also to combat symptoms of umbilical hernias.

Its lavender version increases comfort for deeper relaxation, thanks to the effects of aromatherapy. It can be used by women and men suffering from joint pain, arthritis, bruises and sports injuries due to blows, so you can't let any more time pass without buying this health ally product. It is advisable to consider that its fabric does not transmit heat efficiently, as the construction material is synthetic.

WheatyBags Store - Square Microwave Heat Pack with Cotton Fabric for pain relief and inflammation
  • Size: 34 x 34cm
  • Colours: 12 Models
  • Material: Cotton, Polar Fleece, Fleece
  • Filling: Wheat Grain
  • Uses: Multipurpose
  • Option with or without lavender
  • Various models with different material
  • Suitable for various body areas
  • Chemical free
  • No weight specified
  • Gentle microwaveable
Choose a microwavable wheat bag that maintains your comfort and lifestyle. To do this, you will need to purchase a WheatyBags heated seed pad. This product will help you treat the symptoms of tears, tendon inflammation and joint pain from any condition. Just heat the heated bag in the microwave and then place it on the affected body part, wait about 10 minutes and you will see the first therapeutic benefits.

The fleece fabric is suitable for use as a cold pack, which will help you achieve the benefits of cryotherapy. Just place it in the refrigerator for the recommended time to obtain the necessary medical temperature. It can be used by both men and women, but be aware that the synthetic fabric may melt or cause burns to the user.

Video: How to use heating pads for microwave?

Feel Recovery - Microwaveable Wheat Bag for Pain Relief

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Types of microwavable heating pads you should know about

What are microwavable knee and calf heat packs for?

The microwave heating pad is used to relieve many types of pain caused by muscle tension, menstrual cramps, neck strain, whiplash, bad posture, strokes and bruises, but also to provide comfort on cold days and nights to warm the bed or feet. It is therefore very useful for muscle and joint pain. It can be used for dozens of applications, such as relieving pain, easing inflammation and discomfort, or simply warming up beds and sleeping at a comfortable temperature.


  • Improves blood circulation
  • Relaxes the muscles
  • Prepares the muscles for physical activity
  • Reduces pain transmission
  • Warms up the muscles before a massage
  • Relieves the pain of cramps


  • Bruises
  • Tendonitis
  • Sprains
  • Relieve pain
  • Reduce inflammatory processes
  • Relieve tension in muscles and joints

Advantages and benefits of the microwavable heat pack for legs

The heat pillow allows it to be placed on specific parts of the body, e.g. the lumbar area, the neck area, the feet, to safely warm beds or cots in winter without leaking electrical components or hot liquids, as can happen with electric blankets or water bottles.

With heat therapy and lavender flower aromatherapy, forget painkillers and medications that have proven to be harmful to your long-term health and switch to natural remedies that really work. Thousands of people are already benefiting from local heat and cold therapies for pain relief.

In heat

When heat is applied at more than 40°C (104 °F), as it is when the heat pack is heated in a microwave, heat receptors are activated, which in turn inhibit pain receptors - it's as simple as that. It provides natural pain relief, anti-inflammation, muscle relaxation, general well-being, improved blood circulation and instant warmth.

In cold

Cold can be applied to injured areas to reduce swelling and prevent bruising. Oxygen is present in higher concentrations in cold environments. Applying the heating pad, which has previously been chilled in the freezer, to the areas affected by the blows will allow the blood to circulate better and be enriched with more oxygen, allowing the muscle, joint or skin to recover faster and better.

How to use the microwavable heat pad to relieve leg and knee pain?

Heat therapy

  • 1) Heat our heat pack in the microwave on the highest setting for about 1.5 minutes.
  • 2) Place the bag on the painful area for 15-20 minutes, you will feel your muscles relax and the pain disappear.
  • 3) The pain disappears and you will automatically feel better. We can repeat this process as many times as we want.

Cold therapy

  • 1) Chill our seed pillow in the freezer for about 2 hours before the cold treatment.
  • 2) Place the thermal pillow on the area to be treated for about 10-15 minutes, you will feel the area relax due to the cold therapy.
  • 3) Thanks to the effect of the cold therapy, the pain and inflammation disappear. Apply 3 to 4 times a day for maximum effectiveness.

F.A.Q: Frequently asked questions

How long does it take to heat in the microwave or oven?

This model can be heated for about 1.5 hours at 800 W, but the time is shorter at 1000 W and above. This depends very much on your microwave. We recommend that you choose a shorter time the first few times you use it and increase the time until you reach the desired temperature. If you don't have a microwave oven, this is a good alternative. Always use an electric oven and heat it at 125 ºC (257 °F) for 10-15 minutes, checking the oven constantly. Do not use a gas cooker.

How can I care for it to make it last longer and extend its shelf life?

The seed cushion is a purely natural product, we do not use any synthetic materials or ingredients, so it is necessary to take care of it. We recommend heating it up in the microwave every 2-3 months when not in use so that the seeds and lavender flowers do not spoil. It is advisable to rehydrate the seeds every 8-10 times by placing a container of water in the microwave or oven with the bag to create steam which moistens the seeds, thus extending their shelf life. You can store them in the box in a dry, dark place.

How long will the cushion filled with hot or cold seeds last?

Believe it or not, if you use it to warm up the bed, the heat can last almost all night, although usually when applied to any part of the body, the heat gradually wears off and lasts for about 25-30 minutes, which is more than enough to relieve any kind of pain. If it is cold, once it is taken out of the freezer it will stay cold for about 15-20 minutes, this depends on the outside temperature. A positive point is that you can use it directly on your skin as it has a cotton cover and there is no risk of cold burns.

Can the thermal seed pillow be washed?

Yes, of course it can. It should be noted that only the outer cover, which is printed and coloured, can be washed. As it is a 100% cotton fabric, it is very temperature resistant, but care should be taken not to wash it above 40°C (104 °F). It is also recommended to wash it separately from other garments, especially the first time, to avoid staining other garments.

What do I get when I buy the heat pack?

All our models come with instructions and a beautiful box, perfect for gifting. We often want to give a useful, beautiful and original gift. The knee and calf heating pads filled with lavender flowers is the best way to surprise your loved ones. Its beautiful design is perfect for men and women, it is very useful thanks to its proven benefits for health and it is also a very original gift.

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