A back zip provides an excellent water seal and allows maximum flexibility across the backpanel and shoulders.2.5mm wetsuit - Suitable for spring/summer surface watersports - Flatlock seams - Back zip fastening - Key pocket - Taped seams: 49 x 52 x 2.5Size range: 140 x 140 x 0.5Fabric: 90% Neoprene / 10% Nylon