Knees that feel supported again

Theronel's HeatFlex™ is the 3-in-1 knee relief device combining heat therapy, massage, and support to help you move with confidence and comfort every day.
⭐⭐⭐⭐⭐ 4.7 out of 5 from 10,000+ people using HeatFlex™ in their daily routines
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How It Works

Our 4-in-1 therapy technology provides targeted relief for knee pain in three simple steps.

  • 1 Wrap the device comfortably around your knee
  • 2 Select your preferred heat setting
  • 3 Relax for 15-20 minutes while the gentle heat soothes your pain

Try HeatFlex™ today risk-free!

15,000+

Happy customers

1 Year

Guaranteed Warranty

60 Days

Money-back guarantee

Free shipping on all orders worldwide.

View Boxing Day Offer

Frequently Asked Questions

You got the questions, we got the answers!
  • We offer a 60-day FULL money back guarantee on the HeatFlex™, so you can try it and see results risk-free!
  • Standard shipping typically takes 5-10 business days - we ship worldwide, so if you have queries please contact us at info@miargo.com.
  • No - the device's protective circuit technology has prevention measures for overheating.
  • Using the HeatFlex™ for just 20 minutes a day minimum is recommended for instant relief and long-term results.
  • Our company and product design is entirely based in the United Kingdom. We ship from multiple various warehouses; the shipping location varies based on receipient location.