Men's Two Piece Wetsuits for SCUBA Diving and Commercial Diving. These wetsutis are made of a sleeveless long john wetsuit and a long sleeve wetsuit jacket. These suits provide tremendous versatility for divers to mix and match thicknesses and sizes to get the perfect fit and thermal protection. Choose from men's budget entry level two piece combo wetsuits, mid level 100% stretch, and high performance 180% stretch two piece suits. Available in 3mm, 5mm, and 7mm.