3mm Super-stretch Limestone Neoprene; Thermally Efficient Plush lining throughout; Glued and blindstitched construction; Taped seams for comfort; Glideskin Lined Collar for comfort; Internal silicon grip at wrist and hem; 4 way Super- stretch Neoprene; Thermal protection technology; UPF 50+ protection; Fabric composition: 90% neoprene / 10% recycled nylon