The Rip Curl Omega 43 B/Z (Back Zip) is a 4/3mm neoprene steamer designed as a durable, economical entry-level wetsuit. It features a mix of E5 and E3 neoprene, E5 stress point tape, and sealed GBS (Glued and Blind Stitched) seams for solid stretch and warmth in cooler waters.