One-piece glide skin neoprene wetsuits, specifically designed for freediving, available in 2mm thickness in six sizes and 3.5mm thickness in five sizes. The cut is pre-formed and made with a reduced number of panels, thus increasing comfort and elasticity of the wetsuits. The inner lining is made of highly elastic material, and the wetsuit is glued and internally stitched. The sleeves feature several bar tacks near the cuffs, allowing the sleeves to be cut to the desired length without causing unraveling problems.

The neoprene rubber used for C4 wetsuits is certified free of substances considered harmful to humans and the environment, such as phthalates and latex. Furthermore, it has high compression resistance and excellent elastic recovery.