Billabong SG5 2mm Modular Hood. This is an extremely warm hood featuring a glued & blind stitched construction. Benefiting from an internal manifold which goes underneath the neck of your wetsuit for added warmth. You can tighten the elastic round the face to eliminate water entry. Zero Gravity Superflex Neoprene, 2mm Glued & Blind Stitched, EVA Peak, Adjustable Toggle, Internal Manifold, ,