The Palm AP4000 Helmet – A low profile helmet injection moulded in polypropylene for impact protection with an easy to operate slide adjustable inner cradle for a secure and comfortable fit.FeaturesLow profileWater-resistant foam liningSlide adjustable inner cradleVents for ventilation and drainageSoft webbing chinstrapAccept Palm 10413 face guard for canoe poloSpecificationsFabric: High-impact polypropyleneWeight: 0.43kgCertification: Approved to CE watersport safety standard EN1385Available sizesSmall: Adjustable 51 cm – 56 cmLarge: Adjustable 56 cm – 60 cmSize GuideSizeCircumference(cm)S51-56L56-60