adidas RUNxSPRNV SOCK The adidas RUNxSPRNV SOCK have a snug fit and provide a soft footfall. Formotion technology provides reliable reinforcement. Soft seams and HEAT.RDY technology ensure comfort. It is made from functional materials that contain at least 50% of recycled Parley Ocean Plastic fibres. It is produced using plastic waste from beaches and coastlines, i.e. plastic captured before it reaches the ocean. adidas RUNxSPRNV SOCK