{"product_id":"mizuno-rb-566-golf-balls","title":"Mizuno RB 566 Golf Balls","description":"\u003cstyle\u003e\n.ggfs,.ggfs *{box-sizing:border-box}.ggfs{--n:#081b2c;--b:#0877be;--s:#edf7fc;--g:#68b342;--i:#19252f;--m:#5c6974;--l:#dce4e9;max-width:1180px;margin:0 auto;color:var(--i);font-family:inherit;line-height:1.65}.ggfs h2,.ggfs h3,.ggfs p{margin-top:0}.ggfs h2,.ggfs h3{color:var(--n);line-height:1.18}.ggfs h2{margin-bottom:14px;font-size:clamp(29px,4vw,48px);letter-spacing:-.03em}.ggfs h3{margin-bottom:8px;font-size:20px}.ggfs__hero{display:grid;min-height:450px;margin:22px 0 16px;overflow:hidden;border-radius:22px;background:var(--n);grid-template-columns:1.05fr .95fr}.ggfs__copy{display:flex;padding:clamp(32px,6vw,66px);flex-direction:column;justify-content:center;color:#fff}.ggfs__copy h2{color:#fff}.ggfs__copy p{color:rgba(255,255,255,.82);font-size:17px}.ggfs__media{min-height:450px;background:#fff}.ggfs__media img{width:100%;height:100%;min-height:450px;object-fit:contain;padding:28px}.ggfs__eyebrow{margin-bottom:9px!important;color:#72c4f2!important;font-size:12px!important;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.ggfs__brand{display:inline-block;margin-bottom:10px;color:#fff;font-size:14px;font-weight:700}.ggfs__trust{display:grid;margin-bottom:66px;overflow:hidden;border:1px solid var(--l);border-radius:14px;background:#fff;grid-template-columns:repeat(3,1fr)}.ggfs__trust div{padding:18px;border-right:1px solid var(--l);text-align:center}.ggfs__trust div:last-child{border-right:0}.ggfs__trust strong{display:block;color:var(--n)}.ggfs__trust span{color:var(--m);font-size:12px}.ggfs__head{max-width:780px;margin:0 auto 28px;text-align:center}.ggfs__head p{color:var(--m);font-size:18px}.ggfs__cards{display:grid;gap:17px;margin-bottom:70px;grid-template-columns:repeat(3,1fr)}.ggfs__card{padding:27px;border:1px solid var(--l);border-radius:17px;background:#fff;box-shadow:0 10px 30px rgba(8,27,44,.05)}.ggfs__card b{display:grid;width:38px;height:38px;margin-bottom:16px;border-radius:11px;background:var(--s);color:var(--b);place-items:center}.ggfs__card p{margin-bottom:0;color:var(--m)}.ggfs__data{padding:clamp(30px,5vw,54px);border-radius:20px;background:var(--n);color:#fff}.ggfs__data h2,.ggfs__data h3{color:#fff}.ggfs__columns{display:grid;gap:36px;margin-top:25px;grid-template-columns:1fr 1fr}.ggfs__pillgrid{display:flex;gap:8px;flex-wrap:wrap}.ggfs__pill{padding:8px 11px;border:1px solid rgba(255,255,255,.16);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px;font-weight:700}.ggfs__section{margin:70px 0}.ggfs__split{display:grid;gap:20px;grid-template-columns:1fr 1fr}.ggfs__panel{padding:31px;border-radius:18px;background:#f4f7f8}.ggfs__panel ul{margin:12px 0 0;padding-left:21px}.ggfs__panel li{margin:7px 0}.ggfs__specs{width:100%;overflow:hidden;border:1px solid var(--l);border-radius:13px;border-collapse:separate;border-spacing:0}.ggfs__specs th,.ggfs__specs td{padding:14px 16px;border-bottom:1px solid var(--l);text-align:left;vertical-align:top}.ggfs__specs th{width:38%;background:#f4f7f8;color:var(--n)}.ggfs__specs tr:last-child th,.ggfs__specs tr:last-child td{border-bottom:0}.ggfs details{border-bottom:1px solid var(--l)}.ggfs details:first-of-type{border-top:1px solid var(--l)}.ggfs summary{position:relative;padding:19px 40px 19px 0;color:var(--n);cursor:pointer;font-size:17px;font-weight:800;list-style:none}.ggfs summary::-webkit-details-marker{display:none}.ggfs summary:after{position:absolute;right:4px;content:\"+\";color:var(--b);font-size:25px}.ggfs details[open] summary:after{content:\"–\"}.ggfs details div{max-width:850px;padding:0 0 20px;color:var(--m)}.ggfs__notice{margin:24px 0;padding:17px 19px;border-left:4px solid var(--b);border-radius:0 9px 9px 0;background:var(--s);color:var(--m)}.ggfs__support{margin:66px 0 8px;padding:clamp(30px,5vw,54px);border-radius:20px;background:linear-gradient(120deg,var(--b),#07558d);color:#fff;text-align:center}.ggfs__support h2{color:#fff}.ggfs__support p{max-width:670px;margin:0 auto 20px;color:rgba(255,255,255,.84)}.ggfs__button{display:inline-block;padding:12px 20px;border-radius:8px;background:#fff;color:var(--b)!important;font-weight:800;text-decoration:none!important}@media(max-width:760px){.ggfs__hero{grid-template-columns:1fr}.ggfs__media{order:-1;min-height:300px}.ggfs__media img{min-height:300px}.ggfs__cards,.ggfs__columns,.ggfs__split{grid-template-columns:1fr}.ggfs__trust{grid-template-columns:1fr}.ggfs__trust div{border-right:0;border-bottom:1px solid var(--l)}.ggfs__trust div:last-child{border-bottom:0}}@media(max-width:480px){.ggfs__copy{padding:28px 22px}.ggfs__data,.ggfs__panel{padding:25px 20px}.ggfs__specs th,.ggfs__specs td{display:block;width:100%}.ggfs__specs th{padding-bottom:4px;border-bottom:0}.ggfs__specs td{padding-top:4px}}\n\u003c\/style\u003e\u003cdiv class=\"ggfs\"\u003e\n\u003csection class=\"ggfs__hero\"\u003e\u003cdiv class=\"ggfs__copy\"\u003e\n\u003cp class=\"ggfs__eyebrow\"\u003eMizuno's softest compression ball with 566 micro-dimples for longer flight\u003c\/p\u003e\n\u003cspan class=\"ggfs__brand\"\u003eMizuno · Golf Balls\u003c\/span\u003e\u003ch2\u003eMizuno RB 566 Golf Balls\u003c\/h2\u003e\n\u003cp\u003eThe RB 566 pairs Mizuno's softest compression with a unique 566 micro-dimple design engineered to slow the ball's descent after its apex, so it stays in the air longer. A large, high-energy core reduces driver spin and elevates launch for a stable, straighter flight, and the ionomer cover blends greenside feel with year-round durability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ggfs__media\"\u003e\u003cimg src=\"https:\/\/mizunogolf.com\/us\/wp-content\/themes\/mizunotheme2015\/images\/rb566\/566-cutaway.png\" alt=\"Mizuno RB 566 Golf Balls\" loading=\"lazy\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003cdiv class=\"ggfs__trust\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eMizuno Golf\u003c\/strong\u003e\u003cspan\u003eMizuno's current ball lineup\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eReal product details\u003c\/strong\u003e\u003cspan\u003eSpecs from Mizuno Golf's official product pages\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eGrater Golf support\u003c\/strong\u003e\u003cspan\u003eHelp choosing the right ball\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection\u003e\u003cdiv class=\"ggfs__head\"\u003e\n\u003cp class=\"ggfs__eyebrow\"\u003eWhy golfers choose it\u003c\/p\u003e\n\u003ch2\u003eLarge soft core, and more.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ggfs__cards\"\u003e\n\u003carticle class=\"ggfs__card\"\u003e\u003cb\u003e1\u003c\/b\u003e\u003ch3\u003eLarge soft core\u003c\/h3\u003e\n\u003cp\u003eA big, soft-compression, high-energy core combines great feel with a stable, straighter ball flight.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"ggfs__card\"\u003e\u003cb\u003e2\u003c\/b\u003e\u003ch3\u003e566 micro-dimples\u003c\/h3\u003e\n\u003cp\u003eExtra micro-dimples work harder as the ball slows past its apex, delaying descent for more carry.\u003c\/p\u003e\u003c\/article\u003e\u003carticle class=\"ggfs__card\"\u003e\u003cb\u003e3\u003c\/b\u003e\u003ch3\u003eAll-year durability\u003c\/h3\u003e\n\u003cp\u003eAn ionomer cover balances greenside feel with toughness in every season.\u003c\/p\u003e\u003c\/article\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"ggfs__data\"\u003e\u003cp class=\"ggfs__eyebrow\"\u003eProduct details\u003c\/p\u003e\n\u003ch2\u003eSpecs at a glance\u003c\/h2\u003e\n\u003ctable class=\"ggfs__specs\" style=\"background:#fff;color:#19252f\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMizuno\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eModel\u003c\/th\u003e\n\u003ctd\u003eRB 566\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003e2-piece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCover\u003c\/th\u003e\n\u003ctd\u003eIonomer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimples\u003c\/th\u003e\n\u003ctd\u003e566 micro \/ D-dimple design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFeel\u003c\/th\u003e\n\u003ctd\u003eSoft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTrajectory\u003c\/th\u003e\n\u003ctd\u003eMid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eShort-game spin\u003c\/th\u003e\n\u003ctd\u003eMid\/high\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDriver spin\u003c\/th\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBest for\u003c\/th\u003e\n\u003ctd\u003eMid and slower swing speeds in warm, dry conditions; all speeds in cold or soft conditions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eColors\u003c\/th\u003e\n\u003ctd\u003eWhite, Optic Yellow, Orange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePack size\u003c\/th\u003e\n\u003ctd\u003e1 dozen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"ggfs__section\"\u003e\u003cdiv class=\"ggfs__split\"\u003e\n\u003cdiv class=\"ggfs__panel\"\u003e\n\u003ch2\u003eWhat sets it apart\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMizuno's softest compression\u003c\/li\u003e\n\u003cli\u003e566 micro-dimples delay descent for longer flight\u003c\/li\u003e\n\u003cli\u003eLarge high-energy core lowers driver spin and raises launch\u003c\/li\u003e\n\u003cli\u003eMid\/high short-game spin\u003c\/li\u003e\n\u003cli\u003eIonomer cover for year-round durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ggfs__panel\"\u003e\n\u003ch2\u003eWho it fits\u003c\/h2\u003e\n\u003cp\u003eMizuno recommends the RB 566 for mid and slower swing speeds in warm, dry conditions, and for golfers of any speed in cold or soft conditions. Bright yellow and orange options make it easy to follow and find.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/section\u003e\u003csection class=\"ggfs__section\"\u003e\u003cdiv class=\"ggfs__head\"\u003e\n\u003cp class=\"ggfs__eyebrow\"\u003eProduct questions\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdetails\u003e\u003csummary\u003eIs the RB 566 good for slower swing speeds?\u003c\/summary\u003e\u003cdiv\u003eYes. Its soft compression and large high-energy core help the ball launch and fly straight, and the micro-dimples help it stay in the air longer.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWhy would faster swingers use it in winter?\u003c\/summary\u003e\u003cdiv\u003eSoft compression balls perform well in cold or soft conditions, so Mizuno recommends the RB 566 for all swing speeds in those conditions.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eCan Grater Golf help me choose a ball?\u003c\/summary\u003e\u003cdiv\u003eYes. Tell us your swing speed, typical conditions and what you want more of, whether that's distance, height or greenside spin, and we'll recommend the Mizuno ball that fits.\u003c\/div\u003e\u003c\/details\u003e\u003c\/section\u003e\u003csection class=\"ggfs__support\"\u003e\u003cp class=\"ggfs__eyebrow\"\u003eGrater Golf support\u003c\/p\u003e\n\u003ch2\u003eNot sure which ball fits your game?\u003c\/h2\u003e\n\u003cp\u003eTell us your swing speed and what you want more of, and we’ll help you pick the right Mizuno ball.\u003c\/p\u003e\n\u003ca class=\"ggfs__button\" href=\"mailto:sales@gratergolf.com?subject=Golf%20ball%20question%3A%20Mizuno%20RB%20566%20Golf%20Balls\"\u003eAsk Grater Golf\u003c\/a\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Mizuno","offers":[{"title":"White","offer_id":67912263336087,"sku":"280018-0000","price":22.0,"currency_code":"USD","in_stock":true},{"title":"Optic Yellow","offer_id":67912263368855,"sku":"280018-3535","price":22.0,"currency_code":"USD","in_stock":true},{"title":"Orange","offer_id":67912263401623,"sku":"280018-2020","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/3341\/5319\/files\/RB566_12Pack.jpg?v=1790777159","url":"https:\/\/gratergolf.com\/products\/mizuno-rb-566-golf-balls","provider":"Grater Golf","version":"1.0","type":"link"}