1. Material composition: neoprene nylon
2. Thickness: 3mm
3. Production process: four stitches and six threads precision stitching
4. High elasticity can be stretched at will
5. This product is black 3mm warm diving socks which can be used with fins or worn alone. The sewing is made of four needles and six threads without half-folding and there is a situation where the seam is leaking. It is suitable for use with wet clothes in warm waters