O’Neill’s HyperX Stitchless wetsuit features Stitchless Seam Technology (SST), refined over two decades of innovation and testing, and paired with all-over TB3X high-stretch neoprene for warmer, longer sessions.

Traditional stitched seams can create pinholes that let cold water in. O’Neill’s stitch-free construction eliminates leakage and boosts thermal efficiency — delivering improved warmth, reduced fatigue and exceptional flexibility.