Seac Undervest 2.5mm VestThe Seac 2. 5mm Women's Vest is a versatile neoprene layer designed to provide extra insulation for divers and water sports enthusiasts who want added warmth without sacrificing comfort. When worn under a wetsuit or drysuit, this sleeveless vest boosts core thermal protection so you can stay comfortable on longer dives in temperate water conditions. Its sleeveless design preserves full freedom of movement in the shoulders and arms, making it a great