Designed for use in surface conditions such as under Drysuits and waterproofs, the waistbelt is a self contained unit which provides about 70 minutes of 42 degree warmth around the critical kidney area dramatically improving core warmth.

The rechargeable battery takes about 6 hours to recharge and one size fits all. This product is ideal for all those who find themselves spending long periods of time in cold conditions, from snow boarding to fly fishing to sailing this is a must have.