The Flashbomb Fusion 4/3 Chest Zip Wetsuit is designed to deliver premium warmth in cold water while helping reduce bulk and drying faster. Built for longer winter sessions, its 4/3mm construction provides insulation with Fusion Lining technology for enhanced heat retention. A chest-zip entry supports a secure fit, and taped seams are designed for durability and heat retention. High warmth, low weight, all-day comfort.