Portwest Aluminium Thermal Insulation Insoles Grey One SizeDesigned to insulate your foot with a special aluminium layer to retain heat and repel cold and a wool/polyester layer for added warmth and comfort.Features & Benefits:• 5mm thickness• Special aluminium layer retains heat and repels cold • Wool/polyester layer for added warmth and comfort• Trim to size for the perfect fit• Retail bag which aids presentation for retail salesSpecifications:Colour: GreyFit: R