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Key Features
- Heated via Optional Brunton Power Device
- Heats Up to 131°F
- For Chest Sizes Between 56 to 58"
- For Waist Sizes 48 to 50"
The Heatsync Vital Under-Jacket Warmer (3XL) from Brunton can be combined with any Brunton power device to provide heat to your body. The warmer is powered via any Brunton 5V/2.1AMP USB power bank, and can reach a maximum temperature of 131°F. This heating system is designed for users with a waist size of 48 to 50" and a chest size of 56 to 58", and is intended to rest against a shirt or base layer.
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