Add an extra layer of warmth under your wetsuit with 'Thermals'. Typically made from Polypropylene which is hydrophobic, meaning it repels water, helping to keep the skin dry. This property makes it ideal for layering under wetsuits because it reduces the amount of water that comes into contact with the skin.

When worn as a base layer under a wetsuit, the polypropylene layer works by creating a thin insulating layer that traps body heat. The wetsuit itself usually traps a small amount of water between the neoprene and the skin, which your body warms. The polypropylene layer helps keep you warmer by preventing the cold water from directly contacting your skin and reducing the chilling effect of wet neoprene.