Fourth Element Thermocline Vest - Mens Size:XL Fittings: 3/8"UNF Male x 9/16"

Fittings: 3/8"UNF Male x 9/16" Female

Versatile Design: Designed to excel in most diving conditions

Last Updated: 05/03/2026

reliable low-pressure air transfer

Fourth Element Thermocline Vest - Mens Size:XL Fittings: 3/8"UNF Male x 9/16"Fourth Element Thermocline Vest Mens The Fourth Element Thermocline Vest is designed to be worn under a wetsuit, this vest provides increased thermal protection of the body core by the equivalent of an extra 2 mm of neoprene, whilst being neutrally buoyant and maintaining the freedom of movement of the arms. But even though it has been designed to wear under a wetsuit it can be worn on its own with a pair of thermocline shorts or leggings. Great for