Topic: wetsuit booties

The neoprene of the wetsuit contains small bubbles of nitrogen gas. Nitrogen gas has a very low thermal conductivity. This prevents the heat inside the wetsuit from escaping towards water over and above the wetsuit. If you were in the without a wetsuit on, the heat from physical structure would escape to water because the water has an especially high thermal conductivity. Top quality suits will be more likely to mould perfectly to your body formation. This improves warmth and waterproof build...