
What The People Are Saying
Our Customers Experienced
Based on TrustPilot
Customers Said
96%
Instant Relief in Seconds
90%
More Convenient On-the-Go
90%
Useful Beyond the Outdoors
Testimonials
FAQs
How long do the hand warmers last on a single charge?
How long do the hand warmers last on a single charge?
ThermaLock™ warmers provide up to 12 hours of continuous heat on a full charge, depending on your selected temperature level. Lower settings deliver maximum battery life, perfect for long days outdoors, while higher settings provide fast, intense warmth when you need it most. Whether you’re hiking, working, skiing, or commuting, you’ll have reliable heat that lasts all day without constantly recharging.
Are they safe to use?
Are they safe to use?
Yes — safety is a top priority. ThermaLock™ warmers include advanced temperature control and built-in overheating protection to ensure consistent performance without risk. The durable exterior remains comfortable to the touch, and the double-sided heating design distributes warmth evenly to prevent hot spots. These warmers have undergone rigorous testing to ensure safe use during outdoor activities, travel, and everyday wear.
How do I charge them?
How do I charge them?
Charging is simple. Each warmer features a USB-C charging port, allowing you to power up using any USB-C cable — from a wall adapter, laptop, or portable power bank. Full charging time varies but typically takes 2–3 hours. Once charged, your warmers are ready for the entire day. The digital display helps you keep track of temperature levels and battery life while in use.
Can I use just one at a time?
Can I use just one at a time?
Yes — each warmer can be used individually or together depending on your needs. Use one for quick warming on the go, or carry both to keep both hands comfortable in harsher conditions. The magnetic snap-together design keeps them easy to store and prevents losing one, making them incredibly versatile for travel, sports, and everyday carry.