GBS (glued and blind stitched)

GBS seams, or glued and blind stitched seams, are a type of wetsuit seam which prevents water entering your wetsuit. GBS seams are constructed by first gluing the edges of the neoprene panels together to prevent water entering the wetsuit. Thereafter, the seams are blind stitched together on one or both sides of the neoprene panels, depending on the neoprene thickness and construction. Blind stitching offers additional strength: The needle doesn’t penetrate the neoprene completely, but only stitches through half of the neoprene panel to prevent leakage. More high-end GBS seams can be covered with a liquid neoprene seal on the outside and/or neoprene taping on the inside for extra seam reinforcement.