Size Guide If you are unsure of your size, you can request a guide using the form below and we'll post one to you. Leave this field blank First Name Last Name Address Address 2 City State/Province/Region Postal / Zip Code Country Select CountryAfghanistanAland IslandsAlbaniaAlgeriaAmerican SamoaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Saint Eustatius and Saba Bosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos IslandsColombiaComorosCook IslandsCosta RicaCroatiaCubaCuracaoCyprusCzech RepublicDemocratic Republic of the CongoDenmarkDjiboutiDominicaDominican RepublicEast TimorEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuamGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIrelandIsle of ManIsraelItalyIvory CoastJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKosovoKuwaitKyrgyzstanLaosLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacaoMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesiaMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth KoreaNorthern Mariana IslandsNorwayOmanPakistanPalauPalestinian TerritoryPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalPuerto RicoQatarRepublic of the CongoReunionRomaniaRussiaRwandaSaint BarthelemySaint HelenaSaint Kitts and NevisSaint LuciaSaint MartinSaint Pierre and MiquelonSaint Vincent and the GrenadinesSamoaSan MarinoSao Tome and PrincipeSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSint MaartenSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia and the South Sandwich IslandsSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluU.S. Virgin IslandsUgandaUkraineUnited Arab EmiratesUnited KingdomUnited StatesUnited States Minor Outlying IslandsUruguayUzbekistanVanuatuVaticanVenezuelaVietnamWallis and FutunaWestern SaharaYemenZambiaZimbabwe Email Telephone Sign up to the Hannah Martin Newsletter YesNo Send Your personal information will not be shared with any third party. For more information on how we use your data please see our Privacy Policy. UKUS / CanadaFrance / RussiaSwitzerlandInside Circ mmInside Dia mm E2 1/242.752.7542.7613.61F344444.1414.05G3 3/845.255.2545.1114.36H3 3/446.56.546.0214.65I4 1/447.757.7547.2515.04J4 5/849948.3815.40K5 T/8501049.6415.80L5 T/251.7511.7550.5816.10M652.7512.7551.8716.51N6 1/2541453.1616.92O755.2515.2554.5117.35P7 1/256.516.555.7617.75Q857.7517.7557.1518.19R8 5/8591958.4718.61S9 T/860.2520.2560.0019.10T9 5/861.521.561.2919.51U10 1/462.7522.7562.8920.02V10 5/86323.7563.8420.32W11 1/8652565.2220.76X11 5/866.2526.2566.5421.18