Apparel, Footwear; Bags & Carrying Devices; Suits Wet, Dry Thermal Exposure; North American Office: 207 935 1670; Sales: Michele Tomillo; Fourth Element is the Market Leader in Thermal Protection. With Users Including Fbi Dive Teams, the Norwegian Navy and the British Antarctic Survey, Fourth Element's Products are Proven in the most Demanding Conditions Worldwide. the Halo 3D has Redefined Drysuit Underwear Performance, Combining Thermal Protection with Flexibility, the Proteus 3Mm Wetsuit was, Scuba Gear, Undergarments ...