Thermal Wetsuits
Thermal wetsuits incorporate a special inner layer composed of mineral-enriched fibers that capture your body heat and convert it into FAR infrared, a wavelength of light that NASA discovered is the most effective at raising body temperature. Now this might sound like nonsense, just some sciencey marketing talk, but here's the thing: thermal wetsuits are noticeably lighter and more flexible than a neoprene wetsuit you'd need to maintain the same level of insulation. Once you pull on a thermal wetsuit, you'll be amazed how free, and how delightfully warm, you feel.